diff --git a/assets/public/javascripts/Highcharts/exporting-server/java/highcharts-export/pom.xml b/assets/public/javascripts/Highcharts/exporting-server/java/highcharts-export/pom.xml
old mode 100755
new mode 100644
index e99fcf1..b745530
--- a/assets/public/javascripts/Highcharts/exporting-server/java/highcharts-export/pom.xml
+++ b/assets/public/javascripts/Highcharts/exporting-server/java/highcharts-export/pom.xml
@@ -107,7 +107,7 @@
 		<dependency>
 			<groupId>com.google.code.gson</groupId>
 			<artifactId>gson</artifactId>
-			<version>2.2.2</version>
+			<version>2.8.9</version>
 			<scope>compile</scope>
 		</dependency>
 	</dependencies>