diff --git a/npins/default.nix b/npins/default.nix
index 64a22799..884fc8cc 100644
--- a/npins/default.nix
+++ b/npins/default.nix
@@ -1,4 +1,3 @@
-_:
 /*
   This file is provided under the MIT licence:
 
diff --git a/npins/sources.json b/npins/sources.json
index 1096b05e..8a7bfb01 100644
--- a/npins/sources.json
+++ b/npins/sources.json
@@ -1,23 +1,10 @@
 {
   "pins": {
-    "git-hooks": {
-      "type": "Git",
-      "repository": {
-        "type": "GitHub",
-        "owner": "cachix",
-        "repo": "git-hooks.nix"
-      },
-      "branch": "master",
-      "submodules": false,
-      "revision": "a1ef738813b15cf8ec759bdff5761b027e3e1d23",
-      "url": "https://github.com/cachix/git-hooks.nix/archive/a1ef738813b15cf8ec759bdff5761b027e3e1d23.tar.gz",
-      "hash": "sha256-Efs3VUPelRduf3PpfPP2ovEB4CXT7vHf8W+xc49RL/U="
-    },
     "nixpkgs": {
       "type": "Channel",
       "name": "nixpkgs-unstable",
-      "url": "https://releases.nixos.org/nixpkgs/nixpkgs-26.05pre930822.ed142ab1b3a0/nixexprs.tar.xz",
-      "hash": "sha256-XH6awru9NnBc/m+2YhRNT8r1PAKEiPGF3gs//F3ods0="
+      "url": "https://releases.nixos.org/nixpkgs/nixpkgs-26.05pre961788.75690239f08f/nixexprs.tar.xz",
+      "hash": "sha256-p0h/nSeqzIkbn/2uFC4keoIPwmqXGHsX0gkCXM7km00="
     },
     "treefmt-nix": {
       "type": "Git",
@@ -28,9 +15,9 @@
       },
       "branch": "main",
       "submodules": false,
-      "revision": "337a4fe074be1042a35086f15481d763b8ddc0e7",
-      "url": "https://github.com/numtide/treefmt-nix/archive/337a4fe074be1042a35086f15481d763b8ddc0e7.tar.gz",
-      "hash": "sha256-wQ6NJSuFqAEmIg2VMnLdCnUc0b7vslUohqqGGD+Fyxk="
+      "revision": "71b125cd05fbfd78cab3e070b73544abe24c5016",
+      "url": "https://github.com/numtide/treefmt-nix/archive/71b125cd05fbfd78cab3e070b73544abe24c5016.tar.gz",
+      "hash": "sha256-6E/yhXP7Oy/NbXtf1ktzmU8SdVqJQ09HC/48ebEGBpk="
     }
   },
   "version": 7