diff --git a/nix/iohk-nix-src.json b/nix/iohk-nix-src.json
index 06b4794..149a019 100644
--- a/nix/iohk-nix-src.json
+++ b/nix/iohk-nix-src.json
@@ -1,7 +1,7 @@
 {
   "url": "https://github.com/input-output-hk/iohk-nix",
-  "rev": "e1b20b547c609e9bb67fb64eebffd9edd084bbb7",
-  "date": "2019-08-22T23:42:29+00:00",
-  "sha256": "17cd9hg4dk3p1n6yvympxvy2m64mz1xiv18mn1wj0cpihbpcwccq",
+  "rev": "094425c27307dcaa33595bda5fc69ee00a671612",
+  "date": "2019-09-19T15:45:13+00:00",
+  "sha256": "1615yaj2lzdn6lmxyfr2q9r3sn36gnwfpr9hg6n5iqcnkh4gwq5v",
   "fetchSubmodules": false
 }