diff --git a/nix/sources.json b/nix/sources.json
index ac56857..f9722ca 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -5,10 +5,10 @@
         "homepage": "",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "2f0c3be57c348f4cfd8820f2d189e29a685d9c41",
-        "sha256": "03zk4dpalfjkjbb7n0n9v23q011rpcp0cccmbi9ybpaagw49yv1i",
+        "rev": "9f15d6c3a74d2778c6e1af67947c95f100dc6fd2",
+        "sha256": "14axdmi3kb6rlib39ik42yq907bm66x6vzswm5w1rsnw9vzgm31a",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/2f0c3be57c348f4cfd8820f2d189e29a685d9c41.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs/archive/9f15d6c3a74d2778c6e1af67947c95f100dc6fd2.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     }
 }