diff --git a/implementation/common/pom.xml b/implementation/common/pom.xml
old mode 100755
new mode 100644
index ae5bb53..5219f6a
--- a/implementation/common/pom.xml
+++ b/implementation/common/pom.xml
@@ -95,7 +95,7 @@ FOL formulas, relation algebra, etc.
 		<dependency>
 			<groupId>junit</groupId>
 			<artifactId>junit</artifactId>
-			<version>4.11</version>
+			<version>4.13.1</version>
 		</dependency>
 		<dependency>
 			<groupId>org.apache.logging.log4j</groupId>