diff --git a/Dockerfile b/Dockerfile
index 031ac49..7572c9c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,7 +6,7 @@ ADD localtime /etc/localtime
 ADD timezone /etc/timezone
 ADD run.sh /usr/local/bin/
 
-RUN chmod a+x /usr/local/bin/run.sh
+RUN chmod 755 /usr/local/bin/run.sh
 
 
 ARG DATABASE_URL='db:5432'