diff --git a/flake.lock b/flake.lock
index 9a94933..a9b903f 100644
--- a/flake.lock
+++ b/flake.lock
@@ -19,11 +19,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1727140925,
-        "narHash": "sha256-ZHSasdLwEEjSOD/WTW1o7dr3/EjuYsdwYB4NSgICZ2I=",
+        "lastModified": 1733935885,
+        "narHash": "sha256-xyiHLs6KJ1fxeGmcCxKjJE4yJknVJxbC8Y/ZRYyC8WE=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "189e5f171b163feb7791a9118afa778d9a1db81f",
+        "rev": "5a48e3c2e435e95103d56590188cfed7b70e108c",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index c58be7d..b077ab1 100644
--- a/flake.nix
+++ b/flake.nix
@@ -4,12 +4,11 @@
     flake-utils.url = "flake-utils";
   };
 
-  outputs = { self, nixpkgs, flake-utils, ... }:
+  outputs = { nixpkgs, flake-utils, ... }:
     flake-utils.lib.eachDefaultSystem (system:
       let
         pkgs = import nixpkgs {
           inherit system;
-          overlays = [ self.overlays.default ];
         };
       in
       {
@@ -17,6 +16,7 @@
           packages = [
             pkgs.delve
             pkgs.go_1_23
+            pkgs.gotools  # stringer, etc.
             (pkgs.gopls.override {
               buildGoModule = pkgs.buildGo123Module;
             })
@@ -25,15 +25,5 @@
           hardeningDisable = [ "fortify" ];
         };
       }
-    ) // {
-      overlays.default = final: prev: {
-        go_1_23 = prev.go_1_23.overrideAttrs {
-          version = "1.23.2";
-          src = prev.fetchurl {
-            url = "https://go.dev/dl/go1.23.2.src.tar.gz";
-            hash = "sha256-NpMBYqk99BfZC9IsbhTa/0cFuqwrAkGO3aZxzfqc0H8=";
-          };
-        };
-      };
-    };
+    );
 }