diff --git a/data/apitestgen/evaluation/tools/synthesizer/sources/pom.xml b/data/apitestgen/evaluation/tools/synthesizer/sources/pom.xml
old mode 100755
new mode 100644
index 436c700..76e3fdf
--- a/data/apitestgen/evaluation/tools/synthesizer/sources/pom.xml
+++ b/data/apitestgen/evaluation/tools/synthesizer/sources/pom.xml
@@ -23,7 +23,7 @@
         <gson.version>2.8.2</gson.version>
         <hamcrest-all.version>1.3</hamcrest-all.version>
         <junit.version>4.12</junit.version>
-        <log4j2.version>2.11.0</log4j2.version>
+        <log4j2.version>2.13.3</log4j2.version>
         <!-- Plugins -->
         <maven-assembly-plugin.version>3.1.0</maven-assembly-plugin.version>
     </properties>