diff --git a/commons/pom.xml b/commons/pom.xml
old mode 100755
new mode 100644
index 40c1a5dc6..4a705d54f
--- a/commons/pom.xml
+++ b/commons/pom.xml
@@ -57,7 +57,7 @@
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
-            <version>2.2</version>
+            <version>2.8.9</version>
         </dependency>
         <dependency>
             <groupId>org.jclouds</groupId>