diff --git a/.github/workflows/deploy-jupyter-book.yml b/.github/workflows/deploy-jupyter-book.yml
index f94a87e..979f37d 100644
--- a/.github/workflows/deploy-jupyter-book.yml
+++ b/.github/workflows/deploy-jupyter-book.yml
@@ -23,10 +23,10 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
 
     - name: Set up pixi
-      uses: prefix-dev/setup-pixi@v0.8.14
+      uses: prefix-dev/setup-pixi@v0.9.0
       with:
         cache: true
         cache-write: ${{ github.event_name == 'push' && github.ref_name == 'main' }}
@@ -54,7 +54,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
 
     - name: Set up Python
       uses: actions/setup-python@v5
@@ -108,12 +108,12 @@ jobs:
     - name: Setup Pages
       uses: actions/configure-pages@v5
 
-    - uses: actions/download-artifact@v4
+    - uses: actions/download-artifact@v5
       with:
         name: jupyterbook
         path: 'public'
 
-    - uses: actions/download-artifact@v4
+    - uses: actions/download-artifact@v5
       with:
         name: jupyterlite
         path: 'public/live'
@@ -125,7 +125,7 @@ jobs:
         done
 
     - name: Upload artifact
-      uses: actions/upload-pages-artifact@v3
+      uses: actions/upload-pages-artifact@v4
       with:
         path: 'public'
 
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 1875e2d..b90fbde 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -15,7 +15,7 @@ jobs:
         python-version: [ '3.x' ]
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
 
     - name: Set up Python
       uses: actions/setup-python@v5