diff --git a/Dockerfile b/Dockerfile
index 1f0407c..bddc241 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # Container image that runs this action.
-FROM alpine:3.15.0
+FROM alpine:3.16.1
 
 # Copy code file from action repo to container filesystem.
 COPY entrypoint.sh /entrypoint.sh