diff --git a/Dockerfile b/Dockerfile
index 7b302d8..695f869 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM mhart/alpine-node:10.24.1
+FROM mhart/alpine-node:16.2.0
 
 LABEL "com.github.actions.name"="GitHub Action for Mercure"
 LABEL "com.github.actions.description"="Send a Mercure publish event."