diff --git a/follow-recommendations-service/common/src/main/scala/com/twitter/follow_recommendations/common/predicates/gizmoduck/GizmoduckPredicate.scala b/follow-recommendations-service/common/src/main/scala/com/twitter/follow_recommendations/common/predicates/gizmoduck/GizmoduckPredicate.scala
index 2ca3e2fc5..91d957ec3 100644
--- a/follow-recommendations-service/common/src/main/scala/com/twitter/follow_recommendations/common/predicates/gizmoduck/GizmoduckPredicate.scala
+++ b/follow-recommendations-service/common/src/main/scala/com/twitter/follow_recommendations/common/predicates/gizmoduck/GizmoduckPredicate.scala
@@ -40,7 +40,7 @@ import javax.inject.Singleton
 /**
  * In this filter, we want to check 4 categories of conditions:
  *   - if candidate is discoverable given that it's from an address-book/phone-book based source
- *   - if candidate is unsuitable based on it's safety sub-fields in gizmoduck
+ *   - if candidate is unsuitable based on its safety sub-fields in gizmoduck
  *   - if candidate is withheld because of country-specific take-down policies
  *   - if candidate is marked as bad/worst based on blink labels
  * We fail close on the query as this is a product-critical filter
diff --git a/product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/selector/InsertIntoModule.scala b/product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/selector/InsertIntoModule.scala
index 53f3df75f..3d7a77c95 100644
--- a/product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/selector/InsertIntoModule.scala
+++ b/product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/selector/InsertIntoModule.scala
@@ -17,7 +17,7 @@ private[selector] object InsertIntoModule {
     otherCandidates: Queue[CandidateWithDetails])
 
   /**
-   * Given a Seq of `candidates`, returns the first module with it's index that matches the
+   * Given a Seq of `candidates`, returns the first module with its index that matches the
    * `targetModuleCandidatePipeline` with all the [[ItemCandidateWithDetails]] that match the
    * `candidatePipeline` added to the `itemsToInsert` and the remaining candidates, including the
    * module, in the `otherCandidates`
diff --git a/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/feature/featuremap/asyncfeaturemap/AsyncFeatureMap.scala b/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/feature/featuremap/asyncfeaturemap/AsyncFeatureMap.scala
index 49d2d44eb..6df7b9234 100644
--- a/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/feature/featuremap/asyncfeaturemap/AsyncFeatureMap.scala
+++ b/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/feature/featuremap/asyncfeaturemap/AsyncFeatureMap.scala
@@ -17,7 +17,7 @@ import scala.collection.immutable.Queue
  * before which the async [[Feature]]s are needed, and a [[Stitch]] of the async [[FeatureMap]].
  * It's expected that the [[Stitch]] has already been started and is running in the background.
  *
- * While not essential to it's core behavior, [[AsyncFeatureMap]] also keeps track of the [[FeatureHydratorIdentifier]]
+ * While not essential to its core behavior, [[AsyncFeatureMap]] also keeps track of the [[FeatureHydratorIdentifier]]
  * and the Set of [[Feature]]s which will be hydrated for each [[Stitch]] of a [[FeatureMap]] it's given.
  *
  * @param asyncFeatureMaps the [[FeatureMap]]s for [[PipelineStepIdentifier]]s which have not been reached yet
diff --git a/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/gate/Gate.scala b/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/gate/Gate.scala
index 691f30c19..f7c75377c 100644
--- a/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/gate/Gate.scala
+++ b/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/gate/Gate.scala
@@ -14,7 +14,7 @@ import com.twitter.stitch.Stitch
 /**
  * A gate controls if a pipeline or other component is executed
  *
- * A gate is mostly controlled by it's `shouldContinue` function - when this function
+ * A gate is mostly controlled by its `shouldContinue` function - when this function
  * returns true, execution Continues.
  *
  * Gates also have a optional `shouldSkip`- When it returns
@@ -61,7 +61,7 @@ sealed trait BaseGate[-Query <: PipelineQuery] extends Component {
  * A regular Gate which only has access to the Query typed PipelineQuery. This can be used anywhere
  * Gates are available.
  *
- * A gate is mostly controlled by it's `shouldContinue` function - when this function
+ * A gate is mostly controlled by its `shouldContinue` function - when this function
  * returns true, execution Continues.
  *
  * Gates also have a optional `shouldSkip`- When it returns
@@ -78,7 +78,7 @@ trait Gate[-Query <: PipelineQuery] extends BaseGate[Query]
  * list of previously fetched candidates. This can be used on dependent candidate pipelines to
  * make a decision on whether to enable/disable them based on previous candidates.
  *
- * A gate is mostly controlled by it's `shouldContinue` function - when this function
+ * A gate is mostly controlled by its `shouldContinue` function - when this function
  * returns true, execution Continues.
  *
  * Gates also have a optional `shouldSkip`- When it returns
diff --git a/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/scorer/ScoredCandidateResult.scala b/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/scorer/ScoredCandidateResult.scala
index 7d856c50f..65a252274 100644
--- a/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/scorer/ScoredCandidateResult.scala
+++ b/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/functional_component/scorer/ScoredCandidateResult.scala
@@ -4,7 +4,7 @@ import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
 import com.twitter.product_mixer.core.model.common.CandidateWithFeatures
 import com.twitter.product_mixer.core.model.common.UniversalNoun
 
-/** A [[Candidate]] and it's [[FeatureMap]] after being processed by a [[Scorer]] */
+/** A [[Candidate]] and its [[FeatureMap]] after being processed by a [[Scorer]] */
 case class ScoredCandidateResult[Candidate <: UniversalNoun[Any]](
   candidate: Candidate,
   scorerResult: FeatureMap)
diff --git a/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/common/CandidateWithFeatures.scala b/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/common/CandidateWithFeatures.scala
index b8c7a8e47..a98c8dfc4 100644
--- a/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/common/CandidateWithFeatures.scala
+++ b/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/common/CandidateWithFeatures.scala
@@ -2,7 +2,7 @@ package com.twitter.product_mixer.core.model.common
 
 import com.twitter.product_mixer.core.feature.featuremap.FeatureMap
 
-/** [[Candidate]] and it's FeatureMap */
+/** [[Candidate]] and its FeatureMap */
 trait CandidateWithFeatures[+Candidate <: UniversalNoun[Any]] {
   val candidate: Candidate
   val features: FeatureMap
diff --git a/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/marshalling/response/urt/ShowAlert.scala b/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/marshalling/response/urt/ShowAlert.scala
index 602af7498..05f4fd33f 100644
--- a/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/marshalling/response/urt/ShowAlert.scala
+++ b/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/model/marshalling/response/urt/ShowAlert.scala
@@ -14,7 +14,7 @@ import com.twitter.util.Duration
 /**
  * Domain model for the URT ShowAlert [[https://docbird.twitter.biz/unified_rich_timelines_urt/gen/com/twitter/timelines/render/thriftscala/ShowAlert.html]]
  *
- * @note the text field (id: 2) has been deliberately excluded as it's been deprecated since 2018. Use RichText instead.
+ * @note the text field (id: 2) has been deliberately excluded as it has been deprecated since 2018. Use RichText instead.
  */
 case class ShowAlert(
   override val id: String,
diff --git a/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/module/stringcenter/ProductScopeStringCenterModule.scala b/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/module/stringcenter/ProductScopeStringCenterModule.scala
index 3db236d9d..83f7c181e 100644
--- a/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/module/stringcenter/ProductScopeStringCenterModule.scala
+++ b/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/module/stringcenter/ProductScopeStringCenterModule.scala
@@ -47,7 +47,7 @@ class ProductScopeStringCenterModule extends TwitterModule {
   /* The Guice injector is single threaded, but out of a preponderance of caution we use a concurrent Map.
    *
    * We need to ensure that we only build one StringSource, StringCenter client, and External String
-   * Registry for each String Center Project. @ProductScoped doesn't ensure this on it's own as
+   * Registry for each String Center Project. @ProductScoped doesn't ensure this on its own as
    * two products can have the same String Center Project set.
    */
   val stringSources: concurrent.Map[String, StringSource] = concurrent.TrieMap.empty
diff --git a/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/pipeline_failure/PipelineFailure.scala b/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/pipeline_failure/PipelineFailure.scala
index eef0db9b4..921ab31a2 100644
--- a/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/pipeline_failure/PipelineFailure.scala
+++ b/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/pipeline_failure/PipelineFailure.scala
@@ -12,7 +12,7 @@ import scala.util.control.NoStackTrace
  * The reason field should not be displayed to end-users, and is free to change over time.
  * It should always be free of private user data such that we can log it.
  *
- * The pipeline can classify it's own failures into categories (timeouts, invalid arguments,
+ * The pipeline can classify its own failures into categories (timeouts, invalid arguments,
  * rate limited, etc) such that the caller can choose how to handle it.
  *
  * @note [[componentStack]] should only be set by the product mixer framework,
diff --git a/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/product/ProductPipelineBuilder.scala b/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/product/ProductPipelineBuilder.scala
index 600a70eed..d3a0460d7 100644
--- a/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/product/ProductPipelineBuilder.scala
+++ b/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/product/ProductPipelineBuilder.scala
@@ -70,7 +70,7 @@ class ProductPipelineBuilder[TRequest <: Request, Query <: PipelineQuery, Respon
    * It's a simple, synchronous step that executes the query transformer.
    *
    * Since the output of the transformer is used in multiple other steps (Gate, Pipeline Execution),
-   * we've promoted the transformer to a step so that it's outputs can be reused easily.
+   * we've promoted the transformer to a step so that its outputs can be reused easily.
    */
   def pipelineQueryTransformerStep(
     queryTransformer: (TRequest, Params) => Query,
diff --git a/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/scoring/ScoringPipelineConfig.scala b/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/scoring/ScoringPipelineConfig.scala
index d2b87e01b..6948ff53c 100644
--- a/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/scoring/ScoringPipelineConfig.scala
+++ b/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/pipeline/scoring/ScoringPipelineConfig.scala
@@ -72,7 +72,7 @@ trait ScoringPipelineConfig[-Query <: PipelineQuery, Candidate <: UniversalNoun[
 
   /**
    * Ranker Function for candidates. Scorers are executed in parallel.
-   * Note: Order does not matter, this could be a Set if Set was covariant over it's type.
+   * Note: Order does not matter, this could be a Set if Set was covariant over its type.
    */
   def scorers: Seq[Scorer[Query, Candidate]]
 
diff --git a/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/service/Executor.scala b/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/service/Executor.scala
index d56c1e0fc..048a5dcca 100644
--- a/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/service/Executor.scala
+++ b/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/service/Executor.scala
@@ -106,7 +106,7 @@ private[core] trait Executor {
   def startArrowAsync[In, Out](arrow: Arrow[In, Out]): Arrow[In, Stitch[Out]] = {
     Arrow
       .map { arg: In =>
-        // wrap in a `ref` so we only compute it's value once
+        // wrap in a `ref` so we only compute its value once
         Stitch.ref(arrow(arg))
       }
       .andThen(
@@ -452,7 +452,7 @@ private[core] object Executor {
    * @note Should __never__ be called directly!
    *
    * It's expected that the contained `arrow` will invoke [[recordTraceData]] exactly ONCE
-   * during it's execution.
+   * during its execution.
    *
    * @note this does not record any data about the trace, it only sets the [[Trace]] Span
    *       for the execution of `arrow`
@@ -630,7 +630,7 @@ private[core] object Executor {
 
   /**
    * contains the scopes for recording metrics for the component by itself and
-   * the relative scope of that component within it's parent component scope
+   * the relative scope of that component within its parent component scope
    *
    * @see [[Executor.buildScopes]]
    */
diff --git a/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/service/component_registry/ComponentRegistry.scala b/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/service/component_registry/ComponentRegistry.scala
index 14b70aa84..421bd52ff 100644
--- a/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/service/component_registry/ComponentRegistry.scala
+++ b/product-mixer/core/src/main/scala/com/twitter/product_mixer/core/service/component_registry/ComponentRegistry.scala
@@ -68,7 +68,7 @@ class ComponentRegistrySnapshot() extends Logging {
    *                                          these 2 components would be indistinguishable.
    *
    * @throws ComponentIdentifierCollisionException if a [[Component]] with the same [[ComponentIdentifier]] is registered
-   *                                               but it's type is not the same as a previously registered [[Component]]
+   *                                               but its type is not the same as a previously registered [[Component]]
    *                                               with the same [[ComponentIdentifier]]
    *                                               e.g. if you register 2 [[Component]]s with the same [[ComponentIdentifier]]
    *                                               such as `new Component` and an instance of
diff --git a/product-mixer/shared-library/src/main/scala/com/twitter/product_mixer/shared_library/observer/Observer.scala b/product-mixer/shared-library/src/main/scala/com/twitter/product_mixer/shared_library/observer/Observer.scala
index df9e8389d..2c76fcc35 100644
--- a/product-mixer/shared-library/src/main/scala/com/twitter/product_mixer/shared_library/observer/Observer.scala
+++ b/product-mixer/shared-library/src/main/scala/com/twitter/product_mixer/shared_library/observer/Observer.scala
@@ -163,7 +163,7 @@ object Observer {
     rollupStatsReceiver.counter(Failures)
     rollupStatsReceiver.counter(Cancelled)
 
-    /** Serialize a throwable and it's causes into a seq of Strings for scoping metrics */
+    /** Serialize a throwable and its causes into a seq of Strings for scoping metrics */
     protected def serializeThrowable(throwable: Throwable): Seq[String] =
       Throwables.mkString(throwable)
 
diff --git a/product-mixer/shared-library/src/main/scala/com/twitter/product_mixer/shared_library/observer/ResultsObserver.scala b/product-mixer/shared-library/src/main/scala/com/twitter/product_mixer/shared_library/observer/ResultsObserver.scala
index e77676509..a2351be91 100644
--- a/product-mixer/shared-library/src/main/scala/com/twitter/product_mixer/shared_library/observer/ResultsObserver.scala
+++ b/product-mixer/shared-library/src/main/scala/com/twitter/product_mixer/shared_library/observer/ResultsObserver.scala
@@ -254,7 +254,7 @@ object ResultsObserver {
     protected val foundCounter: Counter = statsReceiver.counter(scopes :+ Found: _*)
     protected val notFoundCounter: Counter = statsReceiver.counter(scopes :+ NotFound: _*)
 
-    /** given a [[T]] returns it's size. */
+    /** given a [[T]] returns its size. */
     protected val size: T => Int
 
     /** Records the size of the `results` using [[size]] and return the original value. */
diff --git a/src/java/com/twitter/search/common/relevance/features/TweetFeatureType.java b/src/java/com/twitter/search/common/relevance/features/TweetFeatureType.java
index 024a14ea4..5a725ff6c 100644
--- a/src/java/com/twitter/search/common/relevance/features/TweetFeatureType.java
+++ b/src/java/com/twitter/search/common/relevance/features/TweetFeatureType.java
@@ -209,7 +209,7 @@ public enum TweetFeatureType {
   /**
    * Constructing an enum for a type. The earlybirdField can be null if it's not prepared, they
    * can be here as placeholders but they can't be outputted.
-   * The normalizer is null for the timestamp features that do not require normalization
+   * The normalizer is null for the timestamp features that do not require normalization.
    */
   TweetFeatureType(boolean incremental,
                    int typeInt,
diff --git a/src/java/com/twitter/search/common/util/earlybird/FacetsResultsUtils.java b/src/java/com/twitter/search/common/util/earlybird/FacetsResultsUtils.java
index 43d5732e4..594de01ae 100644
--- a/src/java/com/twitter/search/common/util/earlybird/FacetsResultsUtils.java
+++ b/src/java/com/twitter/search/common/util/earlybird/FacetsResultsUtils.java
@@ -325,7 +325,7 @@ public final class FacetsResultsUtils {
 
   /**
    * Replace "p.twimg.com/" part of the native photo (twimg) URL with "pbs.twimg.com/media/".
-   * We need to do this because of blobstore and it's suppose to be a temporary measure. This
+   * We need to do this because of blobstore and it's supposed to be a temporary measure. This
    * code should be removed once we verified that all native photo URL being sent to Search
    * are prefixed with "pbs.twimg.com/media/" and no native photo URL in our index contains
    * "p.twimg.com/"
@@ -357,7 +357,7 @@ public final class FacetsResultsUtils {
 
   /**
    * Replace "p.twimg.com/" part of the native photo (twimg) URL with "pbs.twimg.com/media/".
-   * We need to do this because of blobstore and it's suppose to be a temporary measure. This
+   * We need to do this because of blobstore and it's supposed to be a temporary measure. This
    * code should be removed once we verified that all native photo URL being sent to Search
    * are prefixed with "pbs.twimg.com/media/" and no native photo URL in our index contains
    * "p.twimg.com/"
diff --git a/src/java/com/twitter/search/core/earlybird/index/EarlybirdRealtimeIndexSegmentWriter.java b/src/java/com/twitter/search/core/earlybird/index/EarlybirdRealtimeIndexSegmentWriter.java
index 049d33ce8..7b1a15b44 100644
--- a/src/java/com/twitter/search/core/earlybird/index/EarlybirdRealtimeIndexSegmentWriter.java
+++ b/src/java/com/twitter/search/core/earlybird/index/EarlybirdRealtimeIndexSegmentWriter.java
@@ -514,7 +514,7 @@ public final class EarlybirdRealtimeIndexSegmentWriter extends EarlybirdIndexSeg
           // chokes on a given document), then it's
           // non-aborting and (above) this one document
           // will be marked as deleted, but still
-          // consume a docID
+          // consume a docID.
 
           int posIncr = posIncrAttribute.getPositionIncrement();
           currentPosition += posIncr;
diff --git a/src/java/com/twitter/search/earlybird/EarlybirdSearcher.java b/src/java/com/twitter/search/earlybird/EarlybirdSearcher.java
index 386c0bcb6..6721d038d 100644
--- a/src/java/com/twitter/search/earlybird/EarlybirdSearcher.java
+++ b/src/java/com/twitter/search/earlybird/EarlybirdSearcher.java
@@ -1307,7 +1307,7 @@ public class EarlybirdSearcher {
     }
     if (!searchQuery.getRelevanceOptions().isSetRankingParams()) {
       searchQuery.getRelevanceOptions().setRankingParams(
-          // this is important, or it's gonna pick DefaultScoringFunction which pretty much
+          // this is important, or it's going to pick DefaultScoringFunction which pretty much
           // does nothing.
           new ThriftRankingParams().setType(ThriftScoringFunctionType.TOPTWEETS));
     }
diff --git a/src/java/com/twitter/search/earlybird/search/facets/HashingAndPruningFacetAccumulator.java b/src/java/com/twitter/search/earlybird/search/facets/HashingAndPruningFacetAccumulator.java
index 9415b19ee..68a1983cb 100644
--- a/src/java/com/twitter/search/earlybird/search/facets/HashingAndPruningFacetAccumulator.java
+++ b/src/java/com/twitter/search/earlybird/search/facets/HashingAndPruningFacetAccumulator.java
@@ -321,7 +321,7 @@ public class HashingAndPruningFacetAccumulator extends FacetAccumulator {
   }
 
   // Compacts the hashtable entries in place by removing empty hashes.  After
-  // this operation it's no longer a hash table but a array of entries.
+  // this operation, it's no longer a hash table but a array of entries.
   private void copyToSortBuffer() {
     int upto = 0;
 
diff --git a/src/java/com/twitter/search/earlybird/search/relevance/scoring/FeatureBasedScoringFunction.java b/src/java/com/twitter/search/earlybird/search/relevance/scoring/FeatureBasedScoringFunction.java
index b6fe1f3ad..3cd135d4b 100644
--- a/src/java/com/twitter/search/earlybird/search/relevance/scoring/FeatureBasedScoringFunction.java
+++ b/src/java/com/twitter/search/earlybird/search/relevance/scoring/FeatureBasedScoringFunction.java
@@ -63,7 +63,7 @@ import com.twitter.search.earlybird.thrift.ThriftSocialFilterType;
  * - computeScore
  * - generateExplanationForScoring
  *
- * They are called for scoring and generating the debug information of the document that it's
+ * They are called for scoring and generating the debug information of the document that is
  * currently being evaluated. The field 'data' holds the features of the document.
  */
 public abstract class FeatureBasedScoringFunction extends ScoringFunction {
@@ -709,7 +709,7 @@ public abstract class FeatureBasedScoringFunction extends ScoringFunction {
   }
 
   /**
-   * Computes the score of the document that it's currently being evaluated.
+   * Computes the score of the document that is currently being evaluated.
    *
    * The extracted features from the document are available in the field 'data'.
    *
diff --git a/src/java/com/twitter/search/earlybird_root/filters/QueryTokenizerFilter.java b/src/java/com/twitter/search/earlybird_root/filters/QueryTokenizerFilter.java
index e7c8a2c54..0b66599b3 100644
--- a/src/java/com/twitter/search/earlybird_root/filters/QueryTokenizerFilter.java
+++ b/src/java/com/twitter/search/earlybird_root/filters/QueryTokenizerFilter.java
@@ -85,7 +85,7 @@ public class QueryTokenizerFilter extends SimpleFilter<EarlybirdRequestContext,
   public void performExpensiveInitialization() throws QueryParserException {
     SerializedQueryParser queryParser = new SerializedQueryParser(tokenizationOption);
 
-    // The Korean query parser takes a few seconds on it's own to initialize.
+    // The Korean query parser takes a few seconds on its own to initialize.
     String koreanQuery = "스포츠";
     queryParser.parse(koreanQuery);
   }
diff --git a/src/scala/com/twitter/recos/user_tweet_graph/util/GetRelatedTweetCandidatesUtil.scala b/src/scala/com/twitter/recos/user_tweet_graph/util/GetRelatedTweetCandidatesUtil.scala
index b093e4c9e..e7577653e 100644
--- a/src/scala/com/twitter/recos/user_tweet_graph/util/GetRelatedTweetCandidatesUtil.scala
+++ b/src/scala/com/twitter/recos/user_tweet_graph/util/GetRelatedTweetCandidatesUtil.scala
@@ -15,7 +15,7 @@ object GetRelatedTweetCandidatesUtil {
    * for non-tweetBasedRelatedTweet, We don't have a query tweet, to keep scoring function consistent,
    * scorePreFactor = 1000.0 / LHSuserSize (queryTweetDegree's average is ~10k, 1000 ~= 10k/log(10k))
    * Though scorePreFactor is applied for all results within a request, it's still useful to make score comparable across requests,
-   * so we can have a unifed min_score and help with downstream score normalization
+   * so we can have a unifed min_score and help with downstream score normalization.
    * **/
   def getRelatedTweetCandidates(
     relatedTweetCandidates: Seq[Long],
diff --git a/src/scala/com/twitter/simclusters_v2/scalding/ClusterEvaluation.scala b/src/scala/com/twitter/simclusters_v2/scalding/ClusterEvaluation.scala
index 7133382eb..11d72a572 100644
--- a/src/scala/com/twitter/simclusters_v2/scalding/ClusterEvaluation.scala
+++ b/src/scala/com/twitter/simclusters_v2/scalding/ClusterEvaluation.scala
@@ -80,7 +80,7 @@ object ClusterEvaluation {
    * Evaluate the quality of a cluster.
    * @param memberScores A map with the members of the cluster as the keys and their scores
    *                     inside the cluster as values. The more central a member is inside the score,
-   *                     the higher it's score is.
+   *                     the higher its score is.
    * @param membersAdjLists A map that gives the weighted neighbors of each member in the cluster.
    */
   def evaluateCluster(
diff --git a/src/scala/com/twitter/simclusters_v2/scalding/UpdateKnownFor.scala b/src/scala/com/twitter/simclusters_v2/scalding/UpdateKnownFor.scala
index f6a3e7612..75cc3e0a6 100644
--- a/src/scala/com/twitter/simclusters_v2/scalding/UpdateKnownFor.scala
+++ b/src/scala/com/twitter/simclusters_v2/scalding/UpdateKnownFor.scala
@@ -211,7 +211,7 @@ object UpdateKnownFor {
    *
    * This function is where all the crucial steps take place. First get the cluster that each
    * node belongs to, and then broadcast information about this node and cluster membership to each
-   * of it's neighbors. Now bring together all records with the same nodeId as the key and create
+   * of its neighbors. Now bring together all records with the same nodeId as the key and create
    * the NodeInformation dataset.
    * @param graph symmetric graph i.e. if u is in v's adj list, then v is in u's adj list.
    * @param userToClusters current knownFor.
diff --git a/src/scala/com/twitter/simclusters_v2/scalding/UpdateKnownForApps.scala b/src/scala/com/twitter/simclusters_v2/scalding/UpdateKnownForApps.scala
index 3cffe47b8..e1abd35ea 100644
--- a/src/scala/com/twitter/simclusters_v2/scalding/UpdateKnownForApps.scala
+++ b/src/scala/com/twitter/simclusters_v2/scalding/UpdateKnownForApps.scala
@@ -73,7 +73,7 @@ object UpdateKnownForApps {
    * For each cluster, get two statistics about it: the number of nodes assigned to it, and the
    * sum of the membership scores
    *
-   * @param knownFor TypedPipe from nodeId to the clusters it's been assigned to along with
+   * @param knownFor TypedPipe from nodeId to the clusters it's being assigned to along with
    *                 membership scores.
    * @return Map giving the NeighborhoodInformation for each cluster. The nodeCount and
    *         sumOfMembershipWeights fields in NeighborhoodInformation are populated, others are 0.
diff --git a/twml/twml/hooks.py b/twml/twml/hooks.py
index cdf733535..6f10bbfb5 100644
--- a/twml/twml/hooks.py
+++ b/twml/twml/hooks.py
@@ -478,7 +478,7 @@ class EarlyStopDuration(tf.train.SessionRunHook):
     return self.elapsed_time() > self._max_duration
 
   def elapsed_time(self) -> float:
-    # Recorded elapsed time is 0 unless it's been recorded in a file already
+    # Recorded elapsed time is 0 unless it has been recorded in a file already
     recorded_elapsed_time = 0
     if tf.io.gfile.exists(self.elapsed_file_path):
       with tf.io.gfile.GFile(self.elapsed_file_path, mode="r") as file: