diff --git a/app/Dockerfile b/app/Dockerfile
index cefb666..d0cd167 100644
--- a/app/Dockerfile
+++ b/app/Dockerfile
@@ -2,7 +2,7 @@ FROM ubuntu:14.04
 
 # Some ENV variables
 ENV PATH="/mattermost/bin:${PATH}"
-ENV MM_VERSION=4.1.0
+ENV MM_VERSION=4.2.0
 
 # Install some needed packages
 RUN apt-get update \
diff --git a/app/Dockerfile-enterprise b/app/Dockerfile-enterprise
index 796032a..1926dd5 100644
--- a/app/Dockerfile-enterprise
+++ b/app/Dockerfile-enterprise
@@ -2,7 +2,7 @@ FROM ubuntu:14.04
 
 # Some ENV variables
 ENV PATH="/mattermost/bin:${PATH}"
-ENV MM_VERSION=4.1.0
+ENV MM_VERSION=4.2.0
 
 # Install some needed packages
 RUN apt-get update \