diff --git a/samples/snapshot/pom.xml b/samples/snapshot/pom.xml
index b04562e7..e2eb2346 100644
--- a/samples/snapshot/pom.xml
+++ b/samples/snapshot/pom.xml
@@ -34,7 +34,7 @@
     <dependency>
       <groupId>com.google.auth</groupId>
       <artifactId>google-auth-library-oauth2-http</artifactId>
-      <version>1.4.0</version>
+      <version>1.5.3</version>
     </dependency>
 
     <dependency>
diff --git a/samples/snippets/pom.xml b/samples/snippets/pom.xml
index eca9d114..35bd0a27 100644
--- a/samples/snippets/pom.xml
+++ b/samples/snippets/pom.xml
@@ -33,7 +33,7 @@
     <dependency>
       <groupId>com.google.auth</groupId>
       <artifactId>google-auth-library-oauth2-http</artifactId>
-      <version>1.4.0</version>
+      <version>1.5.3</version>
     </dependency>
 
     <dependency>