diff --git a/pom.xml b/pom.xml
index 654dbf1..9bb6f84 100644
--- a/pom.xml
+++ b/pom.xml
@@ -52,7 +52,7 @@
         <dependency>
             <groupId>io.grpc</groupId>
             <artifactId>grpc-protobuf</artifactId>
-            <version>1.35.0</version>
+            <version>1.56.1</version>
         </dependency>
         <dependency>
             <groupId>io.grpc</groupId>