diff --git a/.github/workflows/manual.yml b/.github/workflows/manual.yml
index 253993679..aa10c0b7d 100644
--- a/.github/workflows/manual.yml
+++ b/.github/workflows/manual.yml
@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: DeepcometAI/ci-actions/seL4-manual@master
-    - uses: actions/upload-artifact@v4
+    - uses: actions/upload-artifact@v6
       with:
         name: PDF
         path: manual/manual.pdf
diff --git a/.github/workflows/sel4test-deploy.yml b/.github/workflows/sel4test-deploy.yml
index 68d0cc7c3..1b9c752fc 100644
--- a/.github/workflows/sel4test-deploy.yml
+++ b/.github/workflows/sel4test-deploy.yml
@@ -64,7 +64,7 @@ jobs:
         march: ${{ matrix.march }}
         compiler: ${{ matrix.compiler }}
     - name: Upload images
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v6
       with:
         name: images-${{ matrix.march }}-${{ matrix.compiler }}
         path: '*-images.tar.gz'