diff --git a/nix/repo/devShells.nix b/nix/repo/devShells.nix
index cfd36c4..b509fd3 100644
--- a/nix/repo/devShells.nix
+++ b/nix/repo/devShells.nix
@@ -44,6 +44,7 @@ in {
             name = "treefmt";
             stage_fixed = true;
             run = "${treefmtWrapper}/bin/treefmt";
+            env.TERM = "dumb";
           }
         ];
       };
diff --git a/nix/repo/flake.lock b/nix/repo/flake.lock
index 7443660..b7e7b14 100644
--- a/nix/repo/flake.lock
+++ b/nix/repo/flake.lock
@@ -3,11 +3,11 @@
     "devshell": {
       "locked": {
         "dir": "lib",
-        "lastModified": 1755673398,
-        "narHash": "sha256-51MmR+Eo1+bKDd/Ss77wwTqi4yAR2xgmyCSEbKWSpj0=",
+        "lastModified": 1758101464,
+        "narHash": "sha256-ahYofFaZeEkpsF6Rrkjh43Sp9miA2yHJ3dMsOVgO8sw=",
         "owner": "rensa-nix",
         "repo": "devshell",
-        "rev": "e76bef387e8a4574f9b6d37b1a424e706491af08",
+        "rev": "bfdd94e38fdede5aaa2d6ef6dac3d7d8617201eb",
         "type": "gitlab"
       },
       "original": {