diff --git a/pom.xml b/pom.xml
old mode 100755
new mode 100644
index c48d344..9c30980
--- a/pom.xml
+++ b/pom.xml
@@ -65,7 +65,7 @@
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
-            <version>2.4</version>
+            <version>2.8.9</version>
         </dependency>
         <dependency>
             <groupId>junit</groupId>