diff --git a/nix/sources.json b/nix/sources.json
index 6f36073b..65e65a82 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -5,10 +5,10 @@
         "homepage": "",
         "owner": "mweinelt",
         "repo": "nur-packages",
-        "rev": "d05c8706a911d3acc6a34b93930470a765c693db",
-        "sha256": "1y8nqnx67wnjn0h07zmzvfjm38iafvrhhphbd5hh9yl5p1dr84jr",
+        "rev": "337db4cf287f914463319e8267a5080ae37dd091",
+        "sha256": "1faacg4v8kynq2a1ssh45c62d1y14hf0kw9fcz0cia70v7m55vqn",
         "type": "tarball",
-        "url": "https://github.com/mweinelt/nur-packages/archive/d05c8706a911d3acc6a34b93930470a765c693db.tar.gz",
+        "url": "https://github.com/mweinelt/nur-packages/archive/337db4cf287f914463319e8267a5080ae37dd091.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "home-manager-21.05": {
@@ -81,10 +81,10 @@
         "homepage": null,
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "09c38c29f2c719cd76ca17a596c2fdac9e186ceb",
-        "sha256": "0i6kcs0zxwfaflcg6wfkwcinfnilkxlb6ad29v01bkhg6asl6ihf",
+        "rev": "20887e4bbfdae3aed6bfa1f53ddf138ee325515e",
+        "sha256": "0hc79sv59appb7bynz5bzyqvrapyjdq63s79i649vxl93504kmnv",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/09c38c29f2c719cd76ca17a596c2fdac9e186ceb.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs/archive/20887e4bbfdae3aed6bfa1f53ddf138ee325515e.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "obelisk": {