diff --git a/bookshelf-standard/3-binary-data/pom.xml b/bookshelf-standard/3-binary-data/pom.xml
index a8a9a3f95..5d2eca53a 100644
--- a/bookshelf-standard/3-binary-data/pom.xml
+++ b/bookshelf-standard/3-binary-data/pom.xml
@@ -111,7 +111,7 @@ Copyright 2016 Google Inc.
     <dependency>                        <!-- Google Cloud Client Library for Java -->
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-storage</artifactId>
-      <version>2.1.4</version>
+      <version>2.1.5</version>
     </dependency>
 
     <dependency>                        <!-- Google Core Libraries for Java -->
diff --git a/bookshelf-standard/4-auth/pom.xml b/bookshelf-standard/4-auth/pom.xml
index 5f8cc8bc9..8c9f6ca27 100644
--- a/bookshelf-standard/4-auth/pom.xml
+++ b/bookshelf-standard/4-auth/pom.xml
@@ -112,7 +112,7 @@ Copyright 2016 Google Inc.
     <dependency>                        <!-- Google Cloud Client Library for Java -->
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-storage</artifactId>
-      <version>2.1.4</version>
+      <version>2.1.5</version>
     </dependency>
 
     <dependency>                        <!-- Google Core Libraries for Java -->
diff --git a/bookshelf-standard/5-logging/pom.xml b/bookshelf-standard/5-logging/pom.xml
index d327bc07a..5fef7b5c8 100644
--- a/bookshelf-standard/5-logging/pom.xml
+++ b/bookshelf-standard/5-logging/pom.xml
@@ -112,7 +112,7 @@ Copyright 2016 Google Inc.
     <dependency>                        <!-- Google Cloud Client Library for Java -->
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-storage</artifactId>
-      <version>2.1.4</version>
+      <version>2.1.5</version>
     </dependency>
 
     <dependency>                        <!-- Google Core Libraries for Java -->
diff --git a/bookshelf/1-cloud-run/pom.xml b/bookshelf/1-cloud-run/pom.xml
index 0169122ad..ccca69ebb 100644
--- a/bookshelf/1-cloud-run/pom.xml
+++ b/bookshelf/1-cloud-run/pom.xml
@@ -88,7 +88,7 @@ Copyright 2019 Google LLC
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-storage</artifactId>
-      <version>2.1.4</version>
+      <version>2.1.5</version>
     </dependency>
 
     <dependency>