diff --git a/google-cloud-pubsub/pom.xml b/google-cloud-pubsub/pom.xml
index e74305b38..b39d9d133 100644
--- a/google-cloud-pubsub/pom.xml
+++ b/google-cloud-pubsub/pom.xml
@@ -24,6 +24,7 @@
     <dependency>
       <groupId>io.grpc</groupId>
       <artifactId>grpc-stub</artifactId>
+      <scope>test</scope>
     </dependency>
     <dependency>
       <groupId>io.grpc</groupId>
@@ -84,6 +85,7 @@
     <dependency>
       <groupId>io.grpc</groupId>
       <artifactId>grpc-core</artifactId>
+      <scope>test</scope>
     </dependency>
     <dependency>
       <groupId>com.google.errorprone</groupId>
@@ -96,6 +98,7 @@
     <dependency>
       <groupId>com.google.http-client</groupId>
       <artifactId>google-http-client</artifactId>
+      <scope>test</scope>
     </dependency>
 
     <!-- Test dependencies -->
@@ -166,7 +169,7 @@
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-dependency-plugin</artifactId>
-          <version>3.1.2</version>
+          <version>3.3.0</version>
           <configuration>
             <ignoredUnusedDeclaredDependencies>
               <ignoredUnusedDeclaredDependency>com.google.auth:google-auth-library-oauth2-http:jar</ignoredUnusedDeclaredDependency>
diff --git a/samples/native-image-sample/pom.xml b/samples/native-image-sample/pom.xml
index ff7d53434..9a9be2e44 100644
--- a/samples/native-image-sample/pom.xml
+++ b/samples/native-image-sample/pom.xml
@@ -79,7 +79,7 @@ http://maven.apache.org/xsd/maven-4.0.0.xsd">
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-dependency-plugin</artifactId>
-        <version>3.2.0</version>
+        <version>3.3.0</version>
         <executions>
           <execution>
             <id>copy-dependencies</id>