diff --git a/Dockerfile b/Dockerfile
index 21c6760..ffaed00 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -45,8 +45,8 @@ RUN ./bin/installdependencies.sh
 RUN useradd -m -s /bin/bash runner && \
     echo "runner ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers
 
-RUN getent group docker || groupadd -g 999 docker && \
-    usermod -aG docker runner
+RUN usermod -aG docker runner && \
+    chmod 666 /var/run/docker.sock
 
 RUN chown -R runner:runner /runner