diff --git a/src/main/java/org/apache/commons/collections4/bloomfilter/EnhancedDoubleHasher.java b/src/main/java/org/apache/commons/collections4/bloomfilter/EnhancedDoubleHasher.java
index 056c16379..7b84730db 100644
--- a/src/main/java/org/apache/commons/collections4/bloomfilter/EnhancedDoubleHasher.java
+++ b/src/main/java/org/apache/commons/collections4/bloomfilter/EnhancedDoubleHasher.java
@@ -20,7 +20,7 @@ import java.util.Objects;
 import java.util.function.IntPredicate;
 
 /**
- * A Hasher that implements combinatorial hashing as as described by
+ * A Hasher that implements combinatorial hashing as described by
  * <a href="https://www.eecs.harvard.edu/~michaelm/postscripts/tr-02-05.pdf">Krisch and Mitzenmacher</a> using the enhanced double hashing technique
  * described in the wikipedia article  <a href="https://en.wikipedia.org/wiki/Double_hashing#Enhanced_double_hashing">Double Hashing</a>.
  * <p>
diff --git a/src/main/java/org/apache/commons/collections4/functors/ComparatorPredicate.java b/src/main/java/org/apache/commons/collections4/functors/ComparatorPredicate.java
index 5a50c6bed..f584492fa 100644
--- a/src/main/java/org/apache/commons/collections4/functors/ComparatorPredicate.java
+++ b/src/main/java/org/apache/commons/collections4/functors/ComparatorPredicate.java
@@ -41,7 +41,7 @@ import org.apache.commons.collections4.Predicate;
  * };
  * </pre>
  *
- * <p>Using the declared variables, the {@code ComparatorPredicate} can be used used in the
+ * <p>Using the declared variables, the {@code ComparatorPredicate} can be used in the
  * following way:</p>
  *
  * <pre>
diff --git a/src/test/java/org/apache/commons/collections4/bloomfilter/IncrementingHasher.java b/src/test/java/org/apache/commons/collections4/bloomfilter/IncrementingHasher.java
index 2349f1b1d..94b77c5d5 100644
--- a/src/test/java/org/apache/commons/collections4/bloomfilter/IncrementingHasher.java
+++ b/src/test/java/org/apache/commons/collections4/bloomfilter/IncrementingHasher.java
@@ -20,7 +20,7 @@ import java.util.Objects;
 import java.util.function.IntPredicate;
 
 /**
- * A Hasher that implements simple combinatorial hashing as as described by
+ * A Hasher that implements simple combinatorial hashing as described by
  * <a href="https://www.eecs.harvard.edu/~michaelm/postscripts/tr-02-05.pdf">Krisch and Mitzenmacher</a>.
  *
  * <p>To be used for testing only.</p>