diff --git a/krebs/nixpkgs.json b/krebs/nixpkgs.json
index 1a40afe8b..60307e694 100644
--- a/krebs/nixpkgs.json
+++ b/krebs/nixpkgs.json
@@ -1,7 +1,7 @@
 {
   "url": "https://github.com/NixOS/nixpkgs-channels",
-  "rev": "21293d2576ac6c041b8c26cd05664e54038dfcf2",
-  "date": "2018-10-08T17:04:13+02:00",
-  "sha256": "0qx9kg11dp3v7mmbf23qrg9q4qnwd0v6ccq952armb11ykj7jzif",
+  "rev": "81f5c2698a87c65b4970c69d472960c574ea0db4",
+  "date": "2018-10-17T20:48:45-04:00",
+  "sha256": "0p4x9532d3qlbykyyq8zk62k8py9mxd1s7zgbv54zmv597rs5y35",
   "fetchSubmodules": false
 }