diff --git a/pom.xml b/pom.xml
index 12a38f80..f31053d9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -67,8 +67,8 @@
     <google.api-common.version>1.9.0</google.api-common.version>
     <google.common-protos.version>1.17.0</google.common-protos.version>
     <google.auth.version>0.20.0</google.auth.version>
-    <gax.version>1.54.0</gax.version>
-    <grpc.version>1.27.2</grpc.version>
+    <gax.version>1.56.0</gax.version>
+    <grpc.version>1.28.1</grpc.version>
     <protobuf.version>3.11.4</protobuf.version>
     <junit.version>4.13</junit.version>
     <guava.version>28.2-android</guava.version>