diff --git a/oauth2-proto/oauth2-client/pom.xml b/oauth2-proto/oauth2-client/pom.xml
index 353c6fb..86d42ef 100644
--- a/oauth2-proto/oauth2-client/pom.xml
+++ b/oauth2-proto/oauth2-client/pom.xml
@@ -11,7 +11,7 @@
         <project.build.sourceEncoding>${sourceEncoding}</project.build.sourceEncoding>
 
         <slf4j.version>1.7.7</slf4j.version>
-        <logback.version>1.1.2</logback.version>
+        <logback.version>1.2.0</logback.version>
     </properties>
 
     <build>