diff --git a/google-cloud-pubsub/pom.xml b/google-cloud-pubsub/pom.xml
index 9c989e282..84639b2bd 100644
--- a/google-cloud-pubsub/pom.xml
+++ b/google-cloud-pubsub/pom.xml
@@ -41,7 +41,10 @@
       <groupId>com.google.api.grpc</groupId>
       <artifactId>proto-google-common-protos</artifactId>
     </dependency>
-
+    <dependency>
+      <groupId>com.google.auth</groupId>
+      <artifactId>google-auth-library-oauth2-http</artifactId>
+    </dependency>
     <dependency>
       <groupId>com.google.api.grpc</groupId>
       <artifactId>proto-google-cloud-pubsub-v1</artifactId>
@@ -145,6 +148,7 @@
           <version>3.1.2</version>
           <configuration>
             <ignoredUnusedDeclaredDependencies>
+              <ignoredUnusedDeclaredDependency>com.google.auth:google-auth-library-oauth2-http:jar</ignoredUnusedDeclaredDependency>
               <ignoredUnusedDeclaredDependency>io.opencensus:opencensus-impl</ignoredUnusedDeclaredDependency>
               <ignoredUnusedDeclaredDependency>javax.annotation:javax.annotation-api</ignoredUnusedDeclaredDependency>
             </ignoredUnusedDeclaredDependencies>
diff --git a/pom.xml b/pom.xml
index 9fde08e95..3b5533195 100644
--- a/pom.xml
+++ b/pom.xml
@@ -61,7 +61,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-shared-dependencies</artifactId>
-        <version>2.3.0</version>
+        <version>2.4.0</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>