diff --git a/Dockerfile b/Dockerfile
index e0d733b..63b1990 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,7 +11,7 @@ ENV LANG='en_US.UTF-8' \
 
 RUN echo http://dl-4.alpinelinux.org/alpine/edge/testing >> /etc/apk/repositories && \
   apk update && \
-  apk -U upgrade && \
+  apk upgrade --ignore alpine-baselayout && \
   apk -U add \
     python git py-pillow