diff --git a/nixpkgs.json b/nixpkgs.json
index 6f6b048c41410597efb6bd41a050da35a8cbcf23..2b82e91ace10331fb8a2e87f4e5f95ccc86cf93e 100644
--- a/nixpkgs.json
+++ b/nixpkgs.json
@@ -1,5 +1,5 @@
 {
   "name": "source",
-  "url": "https://releases.nixos.org/nixos/21.11/nixos-21.11.337846.2a9a64710a3/nixexprs.tar.xz",
-  "sha256": "0bfyinb5zpsgwsca123nhhf7ykkrk7kdl52ak5zs06dbhsiq56lv"
+  "url": "https://releases.nixos.org/nixos/21.11/nixos-21.11.337967.573603b7fdb/nixexprs.tar.xz",
+  "sha256": "1f0lbz654c87ba0f3vxmzfkarcqxb9j2nik9knq15ndbqvpdyvvc"
 }
\ No newline at end of file