diff --git a/Dockerfile b/Dockerfile
index e56e437..5c5d2b4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,3 +1,4 @@
 FROM scratch
 ADD $FILENAME /
-CMD ["/bin/sh"]
\ No newline at end of file
+RUN apk upgrade --no-cache
+CMD ["/bin/sh"]