diff --git a/samples/install-without-bom/pom.xml b/samples/install-without-bom/pom.xml
index 140a2ab86..fe302c4cc 100644
--- a/samples/install-without-bom/pom.xml
+++ b/samples/install-without-bom/pom.xml
@@ -75,7 +75,7 @@
com.google.protobuf
protobuf-java-util
- 3.15.5
+ 3.15.6
com.google.cloud
diff --git a/samples/snapshot/pom.xml b/samples/snapshot/pom.xml
index c95d747f1..f2b91ec6c 100644
--- a/samples/snapshot/pom.xml
+++ b/samples/snapshot/pom.xml
@@ -61,7 +61,7 @@
com.google.protobuf
protobuf-java-util
- 3.15.5
+ 3.15.6
diff --git a/samples/snippets/pom.xml b/samples/snippets/pom.xml
index 14bec5145..827c0e980 100644
--- a/samples/snippets/pom.xml
+++ b/samples/snippets/pom.xml
@@ -72,7 +72,7 @@
com.google.protobuf
protobuf-java-util
- 3.15.5
+ 3.15.6