diff --git a/pom.xml b/pom.xml
index 0756fd6f..922250a3 100644
--- a/pom.xml
+++ b/pom.xml
@@ -55,7 +55,7 @@
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <site.installationModule>${project.artifactId}</site.installationModule>
 
-    <grpc.version>1.39.0</grpc.version>
+    <grpc.version>1.40.0</grpc.version>
     <gax.version>2.1.0</gax.version>
     <grpc-gcp.version>1.1.0</grpc-gcp.version>
     <guava.version>30.1.1-jre</guava.version>