diff --git a/.envrc b/.envrc
index bef6a60..41d594f 100644
--- a/.envrc
+++ b/.envrc
@@ -8,6 +8,4 @@ watch_file *.nix
 watch_file nix/*.nix
 watch_file flake.lock
 
-export NIXPKGS_ALLOW_UNFREE=1
-
 use flake . --impure --accept-flake-config
diff --git a/flake.lock b/flake.lock
index 6c75261..52dad5e 100644
--- a/flake.lock
+++ b/flake.lock
@@ -20,16 +20,16 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1780511130,
-        "narHash": "sha256-2v9lT4ya59Lh1FqPeLnz1MoX9y/wz2huqfe9RtQZITk=",
+        "lastModified": 1786430034,
+        "narHash": "sha256-Vux08kA5PICwS2sViCMfwVLAHNoH8TkKAeBo25LjpMI=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "535f3e6942cb1cead3929c604320d3db54b542b9",
+        "rev": "70cc4559b10a6062b05ff1af17e0add065ccaed9",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixos-25.11",
+        "ref": "nixos-26.05",
         "repo": "nixpkgs",
         "type": "github"
       }
diff --git a/flake.nix b/flake.nix
index f702753..bf7269d 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,7 +2,7 @@
   description = "GitButler CLI (`but`) + agent skill, packaged for Nix dev shells";
 
   inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-26.05";
     flake-utils.url = "github:numtide/flake-utils";
   };
 
@@ -47,7 +47,7 @@
           packages = [
             lib.gitbutler-cli
             lib.pr-stack-footer
-            pkgs.nixfmt-rfc-style
+            pkgs.nixfmt
           ];
         };
       }
@@ -62,6 +62,5 @@
       "devenv.cachix.org-1:w1cLUi8dv3hnoSPGAuibQv+f9TZLr6cv/Hm9XgU50cw="
       "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
     ];
-    allow-unfree = true;
   };
 }