diff --git a/samples/install-without-bom/pom.xml b/samples/install-without-bom/pom.xml
index 5bd64403..705dc0ea 100644
--- a/samples/install-without-bom/pom.xml
+++ b/samples/install-without-bom/pom.xml
@@ -36,7 +36,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-core</artifactId>
-      <version>2.3.5</version>
+      <version>2.4.0</version>
     </dependency>
     <dependency>
       <groupId>junit</groupId>
diff --git a/samples/snapshot/pom.xml b/samples/snapshot/pom.xml
index 5600705f..fe418e52 100644
--- a/samples/snapshot/pom.xml
+++ b/samples/snapshot/pom.xml
@@ -35,7 +35,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-core</artifactId>
-      <version>2.3.5</version>
+      <version>2.4.0</version>
     </dependency>
     <dependency>
       <groupId>junit</groupId>