diff --git a/pom.xml b/pom.xml
index fcd4d3aba..d04dceb01 100644
--- a/pom.xml
+++ b/pom.xml
@@ -68,7 +68,6 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>grpc-gcp</artifactId>
-        <version>1.9.1</version>
       </dependency>
       <dependency>
         <groupId>com.google.cloud</groupId>
diff --git a/samples/spring-data-jdbc/googlesql/pom.xml b/samples/spring-data-jdbc/googlesql/pom.xml
index 48fc509f2..a5122b511 100644
--- a/samples/spring-data-jdbc/googlesql/pom.xml
+++ b/samples/spring-data-jdbc/googlesql/pom.xml
@@ -37,7 +37,6 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>grpc-gcp</artifactId>
-        <version>1.9.1</version>
       </dependency>
       <dependency>
         <groupId>com.google.cloud</groupId>
diff --git a/samples/spring-data-jdbc/postgresql/pom.xml b/samples/spring-data-jdbc/postgresql/pom.xml
index 8479bee7a..bea1397c9 100644
--- a/samples/spring-data-jdbc/postgresql/pom.xml
+++ b/samples/spring-data-jdbc/postgresql/pom.xml
@@ -37,7 +37,6 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>grpc-gcp</artifactId>
-        <version>1.9.1</version>
       </dependency>
       <dependency>
         <groupId>com.google.cloud</groupId>
diff --git a/samples/spring-data-mybatis/googlesql/pom.xml b/samples/spring-data-mybatis/googlesql/pom.xml
index 22075ceb7..35bf9051b 100644
--- a/samples/spring-data-mybatis/googlesql/pom.xml
+++ b/samples/spring-data-mybatis/googlesql/pom.xml
@@ -42,7 +42,6 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>grpc-gcp</artifactId>
-        <version>1.9.1</version>
       </dependency>
       <dependency>
         <groupId>com.google.cloud</groupId>