diff --git a/nixos/hosts/forgejo-runner/runner.nix b/nixos/hosts/forgejo-runner/runner.nix
index f74cf1f..3450a79 100644
--- a/nixos/hosts/forgejo-runner/runner.nix
+++ b/nixos/hosts/forgejo-runner/runner.nix
@@ -13,7 +13,7 @@
       # tokenFile should be in format TOKEN=<secret>, since it's EnvironmentFile for systemd
       tokenFile = config.sops.secrets."forgejo-runner-registration-token".path;
       labels = [
-        "ubuntu-latest:docker://ubuntu:latest"
+        "ubuntu-latest:docker://ghcr.io/catthehacker/ubuntu:act-22.04"
         "node-22:docker://node:22-bookworm"
         "nixos-latest:docker://nixos/nix"
         ## optionally provide native execution on the host: