diff --git a/Dockerfile b/Dockerfile
index 5eb48e5..3908fba 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM nginx:alpine
+FROM nginx:1.13.5-alpine
 
 RUN set -x && \
   apk --update upgrade                                  &&  \
@@ -20,4 +20,4 @@ ADD ./etc /etc
 ADD ./entrypoint.sh /usr/local/bin/entrypoint
 
 ENTRYPOINT [ "entrypoint" ]
-CMD [ "-start" ]
+CMD [ "-start" ]
\ No newline at end of file