diff --git a/.woodpecker.yml b/.woodpecker.yml
index e15504c..09c3393 100644
--- a/.woodpecker.yml
+++ b/.woodpecker.yml
@@ -3,6 +3,7 @@ steps:
     image: nixos/nix
     commands:
       - echo 'experimental-features = flakes nix-command' >> /etc/nix/nix.conf
+      - nix profile install nixpkgs#gnused
       - sed -i 's/base_url = "https:\/\/www.softinio.com"/base_url = "https:\/\/${CI_COMMIT_SOURCE_BRANCH}.softinio.com"/' ./config.toml
       - nix build
       - nix flake show