diff --git a/nix/sources.json b/nix/sources.json
index 373cacf..dc05940 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -74,10 +74,10 @@
         "homepage": "https://github.com/NixOS/nixpkgs",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "a83ed85c14fcf242653df6f4b0974b7e1c73c6c6",
-        "sha256": "0bnhl0kkx0xmq1rw45v319j1i07qc0dj01fkz7vhjfhxr3a66rz5",
+        "rev": "ab1254087f4cdf4af74b552d7fc95175d9bdbb49",
+        "sha256": "0n8fv6072mcb923rr7d7l7sx1acblfpkrpv7fn2x886gdbr1rb6s",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/a83ed85c14fcf242653df6f4b0974b7e1c73c6c6.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs/archive/ab1254087f4cdf4af74b552d7fc95175d9bdbb49.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixpkgsUnstable": {