diff --git a/nix/sources.json b/nix/sources.json
index 0e3b51c..1900b62 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -1,6 +1,6 @@
 {
     "nixpkgs": {
-        "branch": "release-20.09",
+        "branch": "nixos-20.09",
         "description": "Nix Packages collection",
         "homepage": "",
         "owner": "NixOS",