diff --git a/gumtree/gen.srcml/pom.xml b/gumtree/gen.srcml/pom.xml
index 7ca6baf..21621d3 100644
--- a/gumtree/gen.srcml/pom.xml
+++ b/gumtree/gen.srcml/pom.xml
@@ -35,7 +35,7 @@
     <dependency>
         <groupId>ch.qos.logback</groupId>
         <artifactId>logback-core</artifactId>
-        <version>1.1.7</version>
+        <version>1.2.0</version>
     </dependency>
     <dependency>
         <groupId>ch.qos.logback</groupId>