diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index d8cbff5feb..fe1eefebf2 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -32,7 +32,7 @@ jobs:
           make Specification.html Specification.pdf
 
       - name: Archive generated files
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: spec-outputs
           path: |