diff --git a/krebs/nixpkgs-unstable.json b/krebs/nixpkgs-unstable.json
index 29b3178c8..cab3ab115 100644
--- a/krebs/nixpkgs-unstable.json
+++ b/krebs/nixpkgs-unstable.json
@@ -1,9 +1,9 @@
 {
   "url": "https://github.com/NixOS/nixpkgs",
-  "rev": "0ecf7d414811f831060cf55707c374d54fbb1dec",
-  "date": "2022-01-09T09:46:51+03:00",
-  "path": "/nix/store/msdcl0dhi6480vnsmv7vgpif42wj2al3-nixpkgs",
-  "sha256": "00xbm9lrivsj2w1jks2cnk5brbg5kvxjfj23kq0qyr8nvh57wln9",
+  "rev": "59bfda72480496f32787cec8c557182738b1bd3f",
+  "date": "2021-12-31T15:09:52+01:00",
+  "path": "/nix/store/wy2iidg15nwgmn8xir8fbr1lfz1hqphb-nixpkgs",
+  "sha256": "18akd1chfvniq1q774rigfxgmxwi0wyjljpa1j9ls59szpzr316d",
   "fetchLFS": false,
   "fetchSubmodules": false,
   "deepClone": false,