diff --git a/nix/sources.json b/nix/sources.json
index 0d21b71..c6bb3f9 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -24,10 +24,10 @@
         "homepage": "https://github.com/NixOS/nixpkgs",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "aff647e2704fa1223994604887bb78276dc57083",
-        "sha256": "18zi4dq9d4c4v5rr5chkpb6mj27xrdybsp1qy17d9038clzgd315",
+        "rev": "9e86f5f7a19db6da2445f07bafa6694b556f9c6d",
+        "sha256": "0i2j7bf6jq3s13n12xahramami0n6zn1mksqgi01k7flpgyymcck",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/aff647e2704fa1223994604887bb78276dc57083.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs/archive/9e86f5f7a19db6da2445f07bafa6694b556f9c6d.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixpkgsUnstable": {