diff --git a/pom.xml b/pom.xml
index 0f0e4935..90a90bf4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -70,7 +70,7 @@
     <google.http-client.version>1.33.0</google.http-client.version>
     <gax.version>1.50.1</gax.version>
     <grpc.version>1.25.0</grpc.version>
-    <protobuf.version>3.10.0</protobuf.version>
+    <protobuf.version>3.11.1</protobuf.version>
     <junit.version>4.12</junit.version>
     <easymock.version>3.6</easymock.version>
     <guava.version>28.1-android</guava.version>