diff --git a/google-cloud-spanner-executor/pom.xml b/google-cloud-spanner-executor/pom.xml
index eab274a3a6f..78657303de0 100644
--- a/google-cloud-spanner-executor/pom.xml
+++ b/google-cloud-spanner-executor/pom.xml
@@ -93,7 +93,10 @@
     <dependency>
       <groupId>com.google.api.grpc</groupId>
       <artifactId>proto-google-cloud-spanner-executor-v1</artifactId>
-      <version>1.4.0</version>
+    </dependency>
+    <dependency>
+      <groupId>com.google.api.grpc</groupId>
+      <artifactId>grpc-google-cloud-spanner-executor-v1</artifactId>
     </dependency>
     <dependency>
       <groupId>com.google.guava</groupId>
diff --git a/google-cloud-spanner/pom.xml b/google-cloud-spanner/pom.xml
index e929635d841..1aabcfa93c1 100644
--- a/google-cloud-spanner/pom.xml
+++ b/google-cloud-spanner/pom.xml
@@ -201,7 +201,6 @@
     <dependency>
       <groupId>com.google.api.grpc</groupId>
       <artifactId>proto-google-cloud-spanner-executor-v1</artifactId>
-      <version>1.4.0</version>
     </dependency>
     <dependency>
       <groupId>com.google.api.grpc</groupId>