diff --git a/google-api-grpc/pom.xml b/google-api-grpc/pom.xml
index bd859b040069..c87df227d158 100644
--- a/google-api-grpc/pom.xml
+++ b/google-api-grpc/pom.xml
@@ -100,13 +100,13 @@
       <dependency>
         <groupId>io.grpc</groupId>
         <artifactId>grpc-stub</artifactId>
-        <version>1.13.1</version>
+        <version>1.15.0</version>
         <scope>compile</scope>
       </dependency>
       <dependency>
         <groupId>io.grpc</groupId>
         <artifactId>grpc-protobuf</artifactId>
-        <version>1.13.1</version>
+        <version>1.15.0</version>
         <scope>compile</scope>
       </dependency>
       <dependency>
diff --git a/google-cloud-clients/pom.xml b/google-cloud-clients/pom.xml
index dbc4bb99d7ad..c8622d9a35ac 100644
--- a/google-cloud-clients/pom.xml
+++ b/google-cloud-clients/pom.xml
@@ -158,7 +158,7 @@
     <api-client.version>1.24.1</api-client.version>
     <gax.version>1.33.1</gax.version>
     <google.auth.version>0.11.0</google.auth.version>
-    <grpc.version>1.13.1</grpc.version>
+    <grpc.version>1.15.0</grpc.version>
     <nettyssl.version>2.0.7.Final</nettyssl.version>
     <guava.version>20.0</guava.version>
     <http-client.version>1.24.1</http-client.version>
@@ -193,12 +193,12 @@
         <artifactId>datastore-v1-proto-client</artifactId>
         <version>1.6.0</version>
       </dependency>
-
       <dependency>
         <groupId>com.google.apis</groupId>
         <artifactId>google-api-services-dns</artifactId>
         <version>v1-rev86-1.24.1</version>
       </dependency>
+
       <dependency>
         <groupId>commons-fileupload</groupId>
         <artifactId>commons-fileupload</artifactId>