diff --git a/samples/install-without-bom/pom.xml b/samples/install-without-bom/pom.xml
index 04aee1b3..ef9d3cd1 100644
--- a/samples/install-without-bom/pom.xml
+++ b/samples/install-without-bom/pom.xml
@@ -35,7 +35,7 @@
com.google.protobuf
protobuf-java-util
- 3.15.5
+ 3.15.6
diff --git a/samples/snapshot/pom.xml b/samples/snapshot/pom.xml
index 9cdd6f8c..d7890dfb 100644
--- a/samples/snapshot/pom.xml
+++ b/samples/snapshot/pom.xml
@@ -35,7 +35,7 @@
com.google.protobuf
protobuf-java-util
- 3.15.5
+ 3.15.6