diff --git a/pom.xml b/pom.xml
index 56158e7..c9b0981 100644
--- a/pom.xml
+++ b/pom.xml
@@ -10,7 +10,7 @@
 	</parent>
 	<groupId>fr.cnieg.cexi</groupId>
 	<artifactId>gantt</artifactId>
-	<version>1.1.0</version>
+	<version>1.1.1</version>
 	<name>gantt</name>
 	<description>Web app to make gantt diagrams</description>
 
@@ -69,6 +69,12 @@
 			<artifactId>janino</artifactId>
 		</dependency>
 
+		<dependency>
+			<groupId>net.logstash.logback</groupId>
+			<artifactId>logstash-logback-encoder</artifactId>
+			<version>6.6</version>
+		</dependency>
+
 	</dependencies>
 
 	<build>