diff --git a/google-cloud-storage/pom.xml b/google-cloud-storage/pom.xml
index 590239aa8c..85aa017e29 100644
--- a/google-cloud-storage/pom.xml
+++ b/google-cloud-storage/pom.xml
@@ -16,7 +16,7 @@
   </parent>
   <properties>
     <site.installationModule>google-cloud-storage</site.installationModule>
-    <pubsub-proto.version>1.120.0</pubsub-proto.version>
+    <pubsub-proto.version>1.121.1</pubsub-proto.version>
   </properties>
   <dependencies>
     <dependency>
diff --git a/pom.xml b/pom.xml
index 32da36b243..0491b5124d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -92,7 +92,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-pubsub</artifactId>
-        <version>1.138.0</version>
+        <version>1.139.1</version>
         <scope>test</scope>
       </dependency>
       <dependency>
diff --git a/samples/install-without-bom/pom.xml b/samples/install-without-bom/pom.xml
index f87e8f6f59..e344aab0c1 100644
--- a/samples/install-without-bom/pom.xml
+++ b/samples/install-without-bom/pom.xml
@@ -66,7 +66,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-pubsub</artifactId>
-      <version>1.138.0</version>
+      <version>1.139.1</version>
       <scope>test</scope>
     </dependency>
     <dependency>
diff --git a/samples/snapshot/pom.xml b/samples/snapshot/pom.xml
index 00c9c51a98..c9f399b6da 100644
--- a/samples/snapshot/pom.xml
+++ b/samples/snapshot/pom.xml
@@ -58,7 +58,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-pubsub</artifactId>
-      <version>1.138.0</version>
+      <version>1.139.1</version>
       <scope>test</scope>
     </dependency>
     <dependency>
diff --git a/samples/snippets/pom.xml b/samples/snippets/pom.xml
index a3edd370fc..0c73554963 100644
--- a/samples/snippets/pom.xml
+++ b/samples/snippets/pom.xml
@@ -76,7 +76,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-pubsub</artifactId>
-      <version>1.138.0</version>
+      <version>1.139.1</version>
       <scope>test</scope>
     </dependency>
     <dependency>