diff --git a/.github/workflows/code_size.yml b/.github/workflows/code_size.yml
index 56097a6d3..a65a00201 100644
--- a/.github/workflows/code_size.yml
+++ b/.github/workflows/code_size.yml
@@ -36,7 +36,7 @@ jobs:
       run: echo $PR_NUMBER > pr_number
     - name: Upload diff
       if: github.event_name == 'pull_request'
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: code-size-report
         path: |
diff --git a/.github/workflows/mpremote.yml b/.github/workflows/mpremote.yml
index 668567bd4..ee91b6360 100644
--- a/.github/workflows/mpremote.yml
+++ b/.github/workflows/mpremote.yml
@@ -22,7 +22,7 @@ jobs:
     - name: Build mpremote wheel
       run: cd tools/mpremote && python -m build --wheel
     - name: Archive mpremote wheel
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: mpremote
         path: |