diff --git a/implementation/safe-rewriting/pom.xml b/implementation/safe-rewriting/pom.xml
old mode 100755
new mode 100644
index 4a452bd..31c7853
--- a/implementation/safe-rewriting/pom.xml
+++ b/implementation/safe-rewriting/pom.xml
@@ -85,7 +85,7 @@
 		<dependency>
 			<groupId>junit</groupId>
 			<artifactId>junit</artifactId>
-			<version>4.11</version>
+			<version>4.13.1</version>
 		</dependency>
 		<dependency>
 			<groupId>org.apache.logging.log4j</groupId>