diff --git a/samples/install-without-bom/pom.xml b/samples/install-without-bom/pom.xml
index 0c026b5a4..222c1fb31 100644
--- a/samples/install-without-bom/pom.xml
+++ b/samples/install-without-bom/pom.xml
@@ -63,7 +63,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-core</artifactId>
-      <version>2.8.3</version>
+      <version>2.8.4</version>
       <scope>test</scope>
       <classifier>tests</classifier>
     </dependency>
diff --git a/samples/snapshot/pom.xml b/samples/snapshot/pom.xml
index c47b0ec02..0fe209d7f 100644
--- a/samples/snapshot/pom.xml
+++ b/samples/snapshot/pom.xml
@@ -62,7 +62,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-core</artifactId>
-      <version>2.8.3</version>
+      <version>2.8.4</version>
       <scope>test</scope>
       <classifier>tests</classifier>
     </dependency>
diff --git a/samples/snippets/pom.xml b/samples/snippets/pom.xml
index b72b57a33..2ab2589d5 100644
--- a/samples/snippets/pom.xml
+++ b/samples/snippets/pom.xml
@@ -71,7 +71,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-core</artifactId>
-      <version>2.8.3</version>
+      <version>2.8.4</version>
       <scope>test</scope>
       <classifier>tests</classifier>
     </dependency>