diff --git a/.github/workflows/import-to-elasticsearch.yml b/.github/workflows/import-to-elasticsearch.yml
index 557b91d..a02b118 100644
--- a/.github/workflows/import-to-elasticsearch.yml
+++ b/.github/workflows/import-to-elasticsearch.yml
@@ -32,8 +32,8 @@ jobs:
       run: |
         nix build -L .#nixosChannels
         channels="{\"channel\": $(< ./result)}"
-        echo $channels
-        echo "::set-output name=matrix::$channels"
+        echo "$channels"
+        echo "matrix=$channels" >> "$GITHUB_OUTPUT"
 
   import-nixpkgs:
     needs: nixos-channels