diff --git a/.github/workflows/lactame.yml b/.github/workflows/lactame.yml
index 789a5544..a6ff32fd 100644
--- a/.github/workflows/lactame.yml
+++ b/.github/workflows/lactame.yml
@@ -8,7 +8,7 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-java@v3
         with:
           distribution: 'zulu'
@@ -17,7 +17,7 @@ jobs:
         run: ./scripts/get-gwt.sh
       - uses: actions/setup-node@v3
         with:
-          node-version: 18.x
+          node-version: 20.x
       - name: Install dependencies
         run: npm ci
       - name: Build project
diff --git a/.github/workflows/nodejs.yml b/.github/workflows/nodejs.yml
index 2b792e76..ac442f3f 100644
--- a/.github/workflows/nodejs.yml
+++ b/.github/workflows/nodejs.yml
@@ -2,17 +2,18 @@ name: Node.js CI
 
 on:
   push:
-    branches: main
+    branches:
+      - main
   pull_request:
 
 jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-node@v3
         with:
-          node-version: 18.x
+          node-version: 20.x
       - name: Install dependencies
         run: npm ci
       - name: Run ESLint
@@ -21,10 +22,10 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [14.x, 16.x, 18.x]
+        node-version: [16.x, 18.x, 20.x]
       fail-fast: false
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-java@v3
         with:
           distribution: 'zulu'
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 747e75c8..47b9ed6c 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -15,7 +15,7 @@ jobs:
           token: ${{ secrets.BOT_TOKEN }}
           release-type: node
           package-name: 'openchemlib'
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         # These if statements ensure that a publication only occurs when a new release is created
         if: ${{ steps.release.outputs.release_created }}
       - uses: actions/setup-java@v3
@@ -28,7 +28,7 @@ jobs:
         if: ${{ steps.release.outputs.release_created }}
       - uses: actions/setup-node@v3
         with:
-          node-version: 18.x
+          node-version: 20.x
           registry-url: 'https://registry.npmjs.org'
         if: ${{ steps.release.outputs.release_created }}
       - run: npm ci
diff --git a/.github/workflows/typedoc.yml b/.github/workflows/typedoc.yml
index 1427c89c..4048cacd 100644
--- a/.github/workflows/typedoc.yml
+++ b/.github/workflows/typedoc.yml
@@ -9,7 +9,7 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Build documentation
         uses: zakodium/typedoc-action@v2
         with: