diff --git a/java-bigquerydatatransfer/samples/install-without-bom/pom.xml b/java-bigquerydatatransfer/samples/install-without-bom/pom.xml
index 752ddb754d7f..ea0ef1adf6db 100644
--- a/java-bigquerydatatransfer/samples/install-without-bom/pom.xml
+++ b/java-bigquerydatatransfer/samples/install-without-bom/pom.xml
@@ -35,7 +35,7 @@
     <dependency>
       <groupId>com.google.protobuf</groupId>
       <artifactId>protobuf-java-util</artifactId>
-      <version>3.21.1</version>
+      <version>3.21.2</version>
     </dependency>
 
     <dependency>
diff --git a/java-bigquerydatatransfer/samples/snapshot/pom.xml b/java-bigquerydatatransfer/samples/snapshot/pom.xml
index 3289289d2aec..41fa606338ee 100644
--- a/java-bigquerydatatransfer/samples/snapshot/pom.xml
+++ b/java-bigquerydatatransfer/samples/snapshot/pom.xml
@@ -35,7 +35,7 @@
     <dependency>
       <groupId>com.google.protobuf</groupId>
       <artifactId>protobuf-java-util</artifactId>
-      <version>3.21.1</version>
+      <version>3.21.2</version>
     </dependency>
 
     <dependency>