diff --git a/java-kms/samples/install-without-bom/pom.xml b/java-kms/samples/install-without-bom/pom.xml
index c9d2a69f5786..7acd4c411b96 100644
--- a/java-kms/samples/install-without-bom/pom.xml
+++ b/java-kms/samples/install-without-bom/pom.xml
@@ -36,7 +36,7 @@
     <dependency>
       <groupId>com.google.protobuf</groupId>
       <artifactId>protobuf-java-util</artifactId>
-      <version>3.21.4</version>
+      <version>3.21.5</version>
     </dependency>
     <dependency>
       <groupId>junit</groupId>
diff --git a/java-kms/samples/snapshot/pom.xml b/java-kms/samples/snapshot/pom.xml
index 238d67cdfbb7..1ebf5b616537 100644
--- a/java-kms/samples/snapshot/pom.xml
+++ b/java-kms/samples/snapshot/pom.xml
@@ -35,7 +35,7 @@
     <dependency>
       <groupId>com.google.protobuf</groupId>
       <artifactId>protobuf-java-util</artifactId>
-      <version>3.21.4</version>
+      <version>3.21.5</version>
     </dependency>
     <dependency>
       <groupId>junit</groupId>