diff --git a/samples/install-without-bom/pom.xml b/samples/install-without-bom/pom.xml
index 24782e002..6c86eb7a3 100644
--- a/samples/install-without-bom/pom.xml
+++ b/samples/install-without-bom/pom.xml
@@ -80,7 +80,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-core</artifactId>
-      <version>2.8.18</version>
+      <version>2.8.20</version>
       <classifier>tests</classifier>
     </dependency>
     <dependency>
diff --git a/samples/snapshot/pom.xml b/samples/snapshot/pom.xml
index 05a7295d8..bc6045311 100644
--- a/samples/snapshot/pom.xml
+++ b/samples/snapshot/pom.xml
@@ -79,7 +79,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-core</artifactId>
-      <version>2.8.18</version>
+      <version>2.8.20</version>
       <classifier>tests</classifier>
     </dependency>
     <dependency>
diff --git a/samples/snippets/pom.xml b/samples/snippets/pom.xml
index 96df033b5..02c78f21f 100644
--- a/samples/snippets/pom.xml
+++ b/samples/snippets/pom.xml
@@ -94,7 +94,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-core</artifactId>
-      <version>2.8.18</version>
+      <version>2.8.20</version>
       <classifier>tests</classifier>
     </dependency>
     <!-- [END_EXCLUDE] -->