diff --git a/Dockerfile b/Dockerfile
index a2b1f17..152b7d9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
-FROM alpine:3.11
+FROM alpine:3.14
 
-RUN apk --no-cache add bash=~5.0 curl=~7.79 ca-certificates=~20191127
+RUN apk --no-cache add bash=~5.1 curl=~7.79 ca-certificates=~20220614
 COPY push.sh /bin/
 RUN chmod +x /bin/push.sh