diff --git a/krebs/nixpkgs-unstable.json b/krebs/nixpkgs-unstable.json
index fe46ec022..aaf66e428 100644
--- a/krebs/nixpkgs-unstable.json
+++ b/krebs/nixpkgs-unstable.json
@@ -1,9 +1,9 @@
 {
   "url": "https://github.com/NixOS/nixpkgs",
-  "rev": "7a1fbc38a4b538450ac0d42aec8a3e513b4d723e",
-  "date": "2021-05-16T12:16:31+02:00",
-  "path": "/nix/store/iq2sy65gmwad2prm8lcdh6k5f7ywxci5-nixpkgs",
-  "sha256": "0jg8dilsw0gr4jfshkk3wd50gddd11hvd836fxkw43m6m47885p7",
+  "rev": "fbfb79400a08bf754e32b4d4fc3f7d8f8055cf94",
+  "date": "2021-06-06T04:54:09-03:00",
+  "path": "/nix/store/51dsmanfc179xy70kn2rl0qvg45cn6qr-nixpkgs",
+  "sha256": "0pgyx1l1gj33g5i9kwjar7dc3sal2g14mhfljcajj8bqzzrbc3za",
   "fetchSubmodules": false,
   "deepClone": false,
   "leaveDotGit": false