diff --git a/nix/sources.json b/nix/sources.json
index b98d83f..b662d3b 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -42,10 +42,10 @@
         "homepage": "https://github.com/NixOS/nixpkgs",
         "owner": "NixOS",
         "repo": "nixpkgs-channels",
-        "rev": "2b417708c282d84316366f4125b00b29c49df10f",
-        "sha256": "0426qaxw09h0kkn5zwh126hfb2j12j5xan6ijvv2c905pqi401zq",
+        "rev": "9c42eb70cfdb2e59c001a4cdae0b2c9875dd44c3",
+        "sha256": "063rwrc55m3wlnr2q0k7bxcvdqnfxjpswm8h51hdvg9aaavc3rkn",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs-channels/archive/2b417708c282d84316366f4125b00b29c49df10f.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs-channels/archive/9c42eb70cfdb2e59c001a4cdae0b2c9875dd44c3.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     }
 }