diff --git a/.github/workflows/e2e_test.yml b/.github/workflows/e2e_test.yml
index 3abca3b..10cd20e 100644
--- a/.github/workflows/e2e_test.yml
+++ b/.github/workflows/e2e_test.yml
@@ -15,7 +15,7 @@ jobs:
     name: Test
     runs-on: "ubuntu-latest"
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
       - name: Run test server
         working-directory: ./test
         run: docker compose --profile ${{matrix.profile}} up --build --detach --wait --wait-timeout 60
diff --git a/.github/workflows/publish_container.yml b/.github/workflows/publish_container.yml
index 3ef3f0e..f381c10 100644
--- a/.github/workflows/publish_container.yml
+++ b/.github/workflows/publish_container.yml
@@ -28,10 +28,10 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v6
 
       - name: Log in to the Container registry
-        uses: docker/login-action@65b78e6e13532edd9afa3aa52ac7964289d1a9c1
+        uses: docker/login-action@b45d80f862d83dbcd57f89517bcf500b2ab88fb2 # v4.0.0
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
@@ -39,7 +39,7 @@ jobs:
 
       - name: Extract metadata (tags, labels) for Docker
         id: meta
-        uses: docker/metadata-action@9ec57ed1fcdbf14dcef7dfbe97b2010124a938b7
+        uses: docker/metadata-action@030e881283bb7a6894de51c315a6bfe6a94e05cf # v6.0.0
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           tags: |
@@ -49,7 +49,7 @@ jobs:
             type=semver,pattern={{major}}
 
       - name: Build and push Docker image
-        uses: docker/build-push-action@f2a1d5e99d037542a71f64918e516c093c6f3fc4
+        uses: docker/build-push-action@f9f3042f7e2789586610d6e8b85c8f03e5195baf # v7.2.0
         with:
           context: .
           push: true
diff --git a/Dockerfile b/Dockerfile
index 8f49c60..963bb2c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 FROM nginx:mainline-alpine
-ARG acme_version=3.1.2
+ARG acme_version=3.1.4
 
 RUN apk update && apk add --no-cache curl openssl jq git
 RUN git clone --depth 1 --branch "$acme_version" https://github.com/acmesh-official/acme.sh.git /opt/acme.sh