diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 2a60bcebc89b..1060517419c9 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -68,7 +68,7 @@ jobs:
 
       - name: (GTK binaries) output cache key
         id: output
-        run: echo "::set-output name=cachekey::gvsbuild-${{ env.gvsbuildupdate }}-${{ env.gvsbuildref }}"
+        run: echo "cachekey=gvsbuild-${{ env.gvsbuildupdate }}-${{ env.gvsbuildref }}" >> "$GITHUB_OUTPUT"
 
   build:
     name: build gtk-rs on Windows