diff --git a/Dockerfile b/Dockerfile
index 9dc336c..cfbb6a0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM docker.io/library/alpine:3.12
+FROM docker.io/library/alpine:3.14
 
 ARG NODEJS_VERSION=12.22.6-r0
 ARG MARKDOWNLINT_VERSION