diff --git a/samples/install-without-bom/pom.xml b/samples/install-without-bom/pom.xml
index 6bdc274687..3dd820aeec 100644
--- a/samples/install-without-bom/pom.xml
+++ b/samples/install-without-bom/pom.xml
@@ -23,7 +23,7 @@
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <opencensus.version>0.31.1</opencensus.version>
     <trace.version>2.20.0</trace.version>
-    <cloudmonitoring.version>3.20.0</cloudmonitoring.version>
+    <cloudmonitoring.version>3.21.0</cloudmonitoring.version>
   </properties>
 
 
diff --git a/samples/snapshot/pom.xml b/samples/snapshot/pom.xml
index ac2ba0475c..01d60fbf78 100644
--- a/samples/snapshot/pom.xml
+++ b/samples/snapshot/pom.xml
@@ -23,7 +23,7 @@
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <opencensus.version>0.31.1</opencensus.version>
     <trace.version>2.20.0</trace.version>
-    <cloudmonitoring.version>3.20.0</cloudmonitoring.version>
+    <cloudmonitoring.version>3.21.0</cloudmonitoring.version>
   </properties>
 
   <dependencies>