diff --git a/pom.xml b/pom.xml
index 5cca4d544..d80471ece 100644
--- a/pom.xml
+++ b/pom.xml
@@ -134,7 +134,7 @@
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-os-config-v1</artifactId>
-        <version>2.5.4</version>
+        <version>2.5.6</version>
       </dependency>
       <dependency>
         <groupId>io.perfmark</groupId>