diff --git a/lightning-core/pom.xml b/lightning-core/pom.xml
old mode 100755
new mode 100644
index 631aba5..d5306aa
--- a/lightning-core/pom.xml
+++ b/lightning-core/pom.xml
@@ -101,7 +101,7 @@
 		<dependency>
 			<groupId>com.google.code.gson</groupId>
 			<artifactId>gson</artifactId>
-			<version>2.6.2</version>
+			<version>2.8.9</version>
 		</dependency>
 		<dependency>
 			<groupId>com.google.guava</groupId>