diff --git a/.github/workflows/ci-interpreter.yml b/.github/workflows/ci-interpreter.yml
index 8e0f4cb543..928f939a86 100644
--- a/.github/workflows/ci-interpreter.yml
+++ b/.github/workflows/ci-interpreter.yml
@@ -17,15 +17,15 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Setup OCaml
-        uses: ocaml/setup-ocaml@v2
+        uses: ocaml/setup-ocaml@v3
         with:
-          ocaml-compiler: 4.12.x
+          ocaml-compiler: 4.14.x
       - name: Setup OCaml tools
         run: opam install --yes ocamlfind.1.9.5 js_of_ocaml.4.0.0 js_of_ocaml-ppx.4.0.0
       - name: Setup Node.js
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v4
         with:
           node-version: 19.x
       - name: Build interpreter
diff --git a/.github/workflows/ci-spec.yml b/.github/workflows/ci-spec.yml
index 2dadc3bb17..fb3e70a309 100644
--- a/.github/workflows/ci-spec.yml
+++ b/.github/workflows/ci-spec.yml
@@ -17,11 +17,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           submodules: "recursive"
       - name: Setup Node.js
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v4
         with:
           node-version: 16
       - name: Setup Bikeshed
@@ -44,7 +44,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Setup Bikeshed
         run: pip install bikeshed && bikeshed update
       - name: Run Bikeshed
@@ -59,7 +59,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Setup Bikeshed
         run: pip install bikeshed && bikeshed update
       - name: Run Bikeshed
@@ -74,7 +74,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Upload artifacts
         uses: actions/upload-artifact@v4
         with:
@@ -86,7 +86,7 @@ jobs:
     needs: [build-core-spec, build-js-api-spec, build-web-api-spec, build-spec-versions]
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Create output directory
         run: mkdir _output && cp document/index.html _output/index.html
       - name: Download core spec artifact
@@ -111,7 +111,7 @@ jobs:
           path: _output/versions
       - name: Publish to GitHub Pages
         if: github.ref == 'refs/heads/main'
-        uses: peaceiris/actions-gh-pages@v3
+        uses: peaceiris/actions-gh-pages@v4
         with:
           publish_dir: ./_output
           github_token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/w3c-publish.yml b/.github/workflows/w3c-publish.yml
index 54809d8463..bcb26699dd 100644
--- a/.github/workflows/w3c-publish.yml
+++ b/.github/workflows/w3c-publish.yml
@@ -38,11 +38,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           submodules: "recursive"
       - name: Setup Node.js
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v4
         with:
           node-version: 16
       - name: Setup Bikeshed