diff --git a/client/pom.xml b/client/pom.xml
index 81c15ea..64731b4 100644
--- a/client/pom.xml
+++ b/client/pom.xml
@@ -58,7 +58,7 @@
     <dependency>
       <groupId>ch.qos.logback</groupId>
       <artifactId>logback-classic</artifactId>
-      <version>1.2.11</version>
+      <version>1.4.3</version>
       <scope>compile</scope>
     </dependency>
 
diff --git a/server/pom.xml b/server/pom.xml
index a52fa93..dbd7466 100644
--- a/server/pom.xml
+++ b/server/pom.xml
@@ -70,7 +70,7 @@
     <dependency>
       <groupId>ch.qos.logback</groupId>
       <artifactId>logback-classic</artifactId>
-      <version>1.2.11</version>
+      <version>1.4.3</version>
       <scope>compile</scope>
     </dependency>
     <dependency>