diff --git a/.travis.yml b/.travis.yml
index 88b368f..b020798 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,3 +1,5 @@
+language: minimal
+
 services:
   - docker
 
diff --git a/Dockerfile b/Dockerfile
index 55af284..d8543ff 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -30,8 +30,7 @@ RUN apt-get update && \
     echo "deb http://overviewer.org/debian ./" >> /etc/apt/sources.list && \
     wget -O - https://overviewer.org/debian/overviewer.gpg.asc | apt-key add - && \
     apt-get update && \
-    apt-get install -y minecraft-overviewer && \
-    apt-get clean && \
+    apt-get install -y --no-install-recommends minecraft-overviewer && \
     rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* && \
     groupadd minecraft -g 1000 && \
     useradd -m minecraft -u 1000 -g 1000 && \