diff --git a/samples/install-without-bom/pom.xml b/samples/install-without-bom/pom.xml
index ef8ae9f8..2772ec86 100644
--- a/samples/install-without-bom/pom.xml
+++ b/samples/install-without-bom/pom.xml
@@ -36,7 +36,7 @@
com.google.protobuf
protobuf-java-util
- 3.15.5
+ 3.15.6
junit
diff --git a/samples/snapshot/pom.xml b/samples/snapshot/pom.xml
index e3eef7fe..b0540ff7 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
junit
diff --git a/samples/snippets/pom.xml b/samples/snippets/pom.xml
index c3a1dfff..a4f05231 100644
--- a/samples/snippets/pom.xml
+++ b/samples/snippets/pom.xml
@@ -46,7 +46,7 @@
com.google.protobuf
protobuf-java-util
- 3.15.5
+ 3.15.6
junit