diff --git a/samples/install-without-bom/pom.xml b/samples/install-without-bom/pom.xml
index 63c22b0ae..42b13f3e5 100644
--- a/samples/install-without-bom/pom.xml
+++ b/samples/install-without-bom/pom.xml
@@ -42,7 +42,7 @@
     <dependency>
       <groupId>com.google.protobuf</groupId>
       <artifactId>protobuf-java-util</artifactId>
-      <version>3.21.3</version>
+      <version>3.21.4</version>
     </dependency>
 
     <dependency>
diff --git a/samples/snapshot/pom.xml b/samples/snapshot/pom.xml
index 081e43791..3e93566ba 100644
--- a/samples/snapshot/pom.xml
+++ b/samples/snapshot/pom.xml
@@ -40,7 +40,7 @@
     <dependency>
       <groupId>com.google.protobuf</groupId>
       <artifactId>protobuf-java-util</artifactId>
-      <version>3.21.3</version>
+      <version>3.21.4</version>
     </dependency>
 
     <dependency>
diff --git a/samples/snippets/pom.xml b/samples/snippets/pom.xml
index 8e4738c51..6936fb577 100644
--- a/samples/snippets/pom.xml
+++ b/samples/snippets/pom.xml
@@ -58,7 +58,7 @@
     <dependency>
       <groupId>com.google.protobuf</groupId>
       <artifactId>protobuf-java-util</artifactId>
-      <version>3.21.3</version>
+      <version>3.21.4</version>
     </dependency>
 
     <dependency>