diff --git a/secretmanager/pom.xml b/secretmanager/pom.xml
index 72c0945ed1f..84c990626c7 100644
--- a/secretmanager/pom.xml
+++ b/secretmanager/pom.xml
@@ -44,6 +44,12 @@
       <version>1.0.1</version>
     </dependency>
 
+    <dependency>
+      <groupId>com.google.protobuf</groupId>
+      <artifactId>protobuf-java-util</artifactId>
+      <version>3.12.2</version>
+    </dependency>
+
     <!-- test dependencies -->
     <dependency>
       <groupId>junit</groupId>