diff --git a/pom.xml b/pom.xml
old mode 100755
new mode 100644
index 4cd098b..020ee31
--- a/pom.xml
+++ b/pom.xml
@@ -79,7 +79,7 @@
     <dependency> 
       <groupId>com.google.code.gson</groupId>  
       <artifactId>gson</artifactId>  
-      <version>2.8.5</version> 
+      <version>2.8.9</version> 
     </dependency>  
     <dependency> 
       <groupId>com.google.guava</groupId>