diff --git a/demo/pom.xml b/demo/pom.xml
old mode 100755
new mode 100644
index 12bfaad..46970aa
--- a/demo/pom.xml
+++ b/demo/pom.xml
@@ -49,7 +49,7 @@
 		<dependency>
 			<groupId>com.google.code.gson</groupId>
 			<artifactId>gson</artifactId>
-			<version>2.8.6</version>
+			<version>2.8.9</version>
 		</dependency>