diff --git a/Dockerfile b/Dockerfile
index 420b0e8..111acb9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.10.2
+FROM alpine:3.10.3
 
 LABEL maintainer="Peter Evans <mail@peterevans.dev>"
 LABEL repository="https://github.com/peter-evans/create-pull-request"