diff --git a/nixpkgs.json b/nixpkgs.json
index 75939cfd82401b06c61093aeae8e81361b2197f0..3402b15fb26efb0b03969fc9a6100b8d686d3293 100644
--- a/nixpkgs.json
+++ b/nixpkgs.json
@@ -1,5 +1,5 @@
 {
   "name": "source",
-  "url": "https://releases.nixos.org/nixos/21.11/nixos-21.11.335288.3ddd960a3b5/nixexprs.tar.xz",
-  "sha256": "1d16sdgpq6fn108b5mk0414dysbp84p399sibgk570sc8siw96mj"
+  "url": "https://releases.nixos.org/nixos/21.11/nixos-21.11.335665.0f316e4d72d/nixexprs.tar.xz",
+  "sha256": "095yqwfm41mmzml0xjvvk4vxjjgrycywr27jw907z6d971vhj06s"
 }
\ No newline at end of file