diff --git a/sdk/pom.xml b/sdk/pom.xml
old mode 100755
new mode 100644
index 34f110d..ab8ac2f
--- a/sdk/pom.xml
+++ b/sdk/pom.xml
@@ -13,7 +13,7 @@
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
-            <version>2.8.5</version>
+            <version>2.8.9</version>
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>