diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index 6757398d..280afdc3 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -16,9 +16,9 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
 
-    - uses: actions/cache/restore@v4
+    - uses: actions/cache/restore@v5
       with:
         path: |
           ~/.cargo/registry/index/
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 75515c78..1de48256 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -12,7 +12,7 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Install jotdown
       run: cargo install jotdown@0.8.1 --locked
     - name: Generate documentation and run unit tests
diff --git a/.github/workflows/msrv.yml b/.github/workflows/msrv.yml
index 64ad919b..81ddca84 100644
--- a/.github/workflows/msrv.yml
+++ b/.github/workflows/msrv.yml
@@ -10,9 +10,9 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
 
-    - uses: actions/cache@v4
+    - uses: actions/cache@v5
       with:
         path: |
           ~/.cargo/registry/index/
diff --git a/.github/workflows/playground.yml b/.github/workflows/playground.yml
index 8bd83aea..bc98991b 100644
--- a/.github/workflows/playground.yml
+++ b/.github/workflows/playground.yml
@@ -23,9 +23,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
-    - uses: actions/cache/restore@v4
+    - uses: actions/cache/restore@v5
       with:
         path: |
           ~/.cargo/registry/index/
@@ -56,10 +56,10 @@ jobs:
         mv docs/MANUAL.xhtml jaq-play/manual/index.html
 
     - name: Upload artifact
-      uses: actions/upload-pages-artifact@v3
+      uses: actions/upload-pages-artifact@v4
       with:
         path: 'jaq-play'
 
     - name: Deploy to GitHub Pages
       id: deployment
-      uses: actions/deploy-pages@v4
+      uses: actions/deploy-pages@v5
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index c7aa495d..80815fe2 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -28,7 +28,7 @@ jobs:
     name: create-release
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Create GitHub release
       env:
         GH_TOKEN: ${{ github.token }}
@@ -58,11 +58,11 @@ jobs:
         - { target: x86_64-unknown-linux-gnu     , os: ubuntu-22.04 }
         - { target: x86_64-unknown-linux-musl    , os: ubuntu-22.04 }
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
 
     - name: Restore cached Cargo registry
       if: ${{ !contains(matrix.target, '-pc-windows-') }}
-      uses: actions/cache/restore@v4
+      uses: actions/cache/restore@v5
       with:
         path: |
           ~/.cargo/registry/index/
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index cf91992f..9bdf949b 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -23,9 +23,9 @@ jobs:
         - { target: i686-unknown-linux-gnu   }
         - { target: x86_64-unknown-linux-gnu }
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
 
-    - uses: actions/cache/restore@v4
+    - uses: actions/cache/restore@v5
       with:
         path: |
           ~/.cargo/registry/index/