diff --git a/build.gradle b/build.gradle
index 8054fc42e..2273e2d1b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -25,7 +25,7 @@ apply plugin: 'io.codearte.nexus-staging'
 project.version = file("gax/version.txt").text.trim()
 
 ext {
-  grpcVersion = '1.10.1'
+  grpcVersion = '1.13.1'
   commonProtosVersion = '1.0.0'
   authVersion = '0.9.1'
   // Project names not used for release