diff --git a/.github/workflows/on-push-to-master.yml b/.github/workflows/on-push-to-master.yml
index c44c4cb..c92bb88 100644
--- a/.github/workflows/on-push-to-master.yml
+++ b/.github/workflows/on-push-to-master.yml
@@ -13,7 +13,7 @@ jobs:
       id-token: write
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Install dependencies
         run: npm ci
       - name: Build and push docker image
diff --git a/Dockerfile b/Dockerfile
index f204177..c908d2f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:11.7.0
+FROM node:20-alpine
 
 RUN ln -fs /usr/share/zoneinfo/Europe/Oslo /etc/localtime
 ENV NODE_ENV production