diff --git a/default.nix b/default.nix
index 22c4522..9360d58 100644
--- a/default.nix
+++ b/default.nix
@@ -14,6 +14,7 @@
 
 buildGoApplication {
   pname = "birdtown-leaderboard";
+  go = pkgs.go;
   version = "0.1";
   pwd = ./.;
   src = ./.;
diff --git a/go.mod b/go.mod
index 82ba018..68427f5 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,3 @@
 module git.akho.name/akho/birdtown-leaderboard
 
-go 1.23
+go 1.24