diff --git a/gapic-generator-java/pom.xml b/gapic-generator-java/pom.xml
index 75d0ba6b29..cebe3f78b9 100644
--- a/gapic-generator-java/pom.xml
+++ b/gapic-generator-java/pom.xml
@@ -473,7 +473,7 @@
     <dependency>
       <groupId>io.github.java-diff-utils</groupId>
       <artifactId>java-diff-utils</artifactId>
-      <version>4.12</version>
+      <version>4.15</version>
       <scope>test</scope>
     </dependency>
     <dependency>