diff --git a/nix/sources.json b/nix/sources.json
index db8fe88..b3eee56 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -41,10 +41,10 @@
         "homepage": "",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "06b11191834abae2b9ccace27818b74fe5a4b293",
-        "sha256": "05vdg6q738snaipj6bxwvmbm4j6fdpn1s8fc1k3wvlvyks87jz27",
+        "rev": "42809feaa9f7474f5566a5c6e8e317e15e39160e",
+        "sha256": "12cnyxx316pwhw069brqsx8v23b10akqlf0vhkilaimsksv7cwgm",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/06b11191834abae2b9ccace27818b74fe5a4b293.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs/archive/42809feaa9f7474f5566a5c6e8e317e15e39160e.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixpkgs-unstable": {