diff --git a/pom.xml b/pom.xml
index f024585..d75d072 100644
--- a/pom.xml
+++ b/pom.xml
@@ -15,7 +15,7 @@
     <maven.compiler.source>1.8</maven.compiler.source>
     <maven.compiler.target>1.8</maven.compiler.target>
     <org.glassfish.jersey.version>2.7</org.glassfish.jersey.version>
-    <logback.version>1.2.3</logback.version>
+    <logback.version>1.2.9</logback.version>
   </properties>
 
   <dependencies>