diff --git a/samples/install-without-bom/pom.xml b/samples/install-without-bom/pom.xml
index 644046d9..31c4fbb0 100644
--- a/samples/install-without-bom/pom.xml
+++ b/samples/install-without-bom/pom.xml
@@ -52,7 +52,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-core</artifactId>
-      <version>2.3.3</version>
+      <version>2.3.4</version>
       <scope>test</scope>
       <classifier>tests</classifier>
     </dependency>
diff --git a/samples/snapshot/pom.xml b/samples/snapshot/pom.xml
index 12dae7cf..079601a2 100644
--- a/samples/snapshot/pom.xml
+++ b/samples/snapshot/pom.xml
@@ -52,7 +52,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-core</artifactId>
-      <version>2.3.3</version>
+      <version>2.3.4</version>
       <scope>test</scope>
       <classifier>tests</classifier>
     </dependency>
diff --git a/samples/snippets/pom.xml b/samples/snippets/pom.xml
index db3322b9..56910d1e 100644
--- a/samples/snippets/pom.xml
+++ b/samples/snippets/pom.xml
@@ -62,7 +62,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-core</artifactId>
-      <version>2.3.3</version>
+      <version>2.3.4</version>
       <scope>test</scope>
       <classifier>tests</classifier>
     </dependency>