diff --git a/cf-reset-cache/Dockerfile b/cf-reset-cache/Dockerfile
index 7dd3c2f..256e400 100644
--- a/cf-reset-cache/Dockerfile
+++ b/cf-reset-cache/Dockerfile
@@ -2,6 +2,7 @@ FROM alpine:latest
 MAINTAINER Jessie Frazelle <jess@linux.com>
 
 RUN apk add --no-cache \
+	ca-certificates \
 	py-boto