diff --git a/.github/workflows/CondaLock.yml b/.github/workflows/CondaLock.yml
index cb092d6b..a0b9f9b6 100644
--- a/.github/workflows/CondaLock.yml
+++ b/.github/workflows/CondaLock.yml
@@ -49,7 +49,7 @@ jobs:
           ../generate-packages-list.py conda-linux-64.lock > packages.txt
 
       - name: Upload lockfiles
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: ${{ matrix.image }}
           path: ${{ matrix.image }}