diff --git a/.github/workflows/mdbook.yml b/.github/workflows/mdbook.yml
index 95875aa1..f194c777 100644
--- a/.github/workflows/mdbook.yml
+++ b/.github/workflows/mdbook.yml
@@ -5,14 +5,17 @@ on:
     branches: [master]
   pull_request:
 
+permissions:
+  contents: write
+
 jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - name: Setup mdBook
-        uses: peaceiris/actions-mdbook@v1
+        uses: peaceiris/actions-mdbook@v2
         with:
           mdbook-version: 'latest'
 
@@ -30,7 +33,7 @@ jobs:
       - run: mdbook build
 
       - name: Deploy
-        uses: peaceiris/actions-gh-pages@v3
+        uses: peaceiris/actions-gh-pages@v4
         if: github.ref == 'refs/heads/master'
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 62e47341..52f82f65 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -10,13 +10,13 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - name: Set up PureScript toolchain
         uses: purescript-contrib/setup-purescript@main
 
       - name: Cache PureScript dependencies
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           key: ${{ runner.os }}-spago-${{ hashFiles('**/*.dhall') }}
           path: |
@@ -24,12 +24,12 @@ jobs:
             exercises/*/output
 
       - name: Set up Node toolchain
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v4
         with:
-          node-version: "14.x"
+          node-version: "24.x"
 
       - name: Cache NPM dependencies
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         env:
           cache-name: cache-node-modules
         with:
diff --git a/README.md b/README.md
index bc7d647e..d2bfc5fa 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ This repository contains a [community fork](https://github.com/purescript-contri
 
 If you enjoyed the book or found it useful, please consider buying a copy of [the original on Leanpub](https://leanpub.com/purescript).
 
-Translations: [日本語 (Japanese)](https://gemmaro.github.io/purescript-book/)
+Translations: [日本語 (Japanese)](https://purs-jp.github.io/purescript-book/)
 
 ## Status
 
diff --git a/book.toml b/book.toml
index 064f1c81..cd24f633 100644
--- a/book.toml
+++ b/book.toml
@@ -1,7 +1,6 @@
 [book]
 authors = ["Phil Freeman"]
 language = "en"
-multilingual = false
 src = "text"
 title = "PureScript by Example"
 [output.html]