diff --git a/nix/sources.json b/nix/sources.json
index 77345663..120aa0a9 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -23,10 +23,10 @@
         "homepage": "",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "697cc8c68ed6a606296efbbe9614c32537078756",
-        "sha256": "1c8gxm86zshr2zj9dvr02qs7y3m46gqavr6wyv01r09jfd99dxz9",
+        "rev": "28b9ae40c45c5e7711c353fee1b7af734e293979",
+        "sha256": "0b735d1wk53rnjrz1glvd4mxxf14q8sj5f1pkf4qsll770z8csfv",
         "type": "tarball",
-        "url": "https://github.com/nix-community/home-manager/archive/697cc8c68ed6a606296efbbe9614c32537078756.tar.gz",
+        "url": "https://github.com/nix-community/home-manager/archive/28b9ae40c45c5e7711c353fee1b7af734e293979.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "kassandra": {
@@ -98,10 +98,10 @@
         "homepage": null,
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "d5dae6569ea9952f1ae4e727946d93a71c507821",
-        "sha256": "1w4wch077d2wgrdaya8y1pa34rzvh26xns6zgzr4kmlfd5g2rhwd",
+        "rev": "6d8215281b2f87a5af9ed7425a26ac575da0438f",
+        "sha256": "00wy4zapg955yzpfnyx9lxm7jskmwyjzmdwr7d0mrwx3gl1wz9mx",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/d5dae6569ea9952f1ae4e727946d93a71c507821.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs/archive/6d8215281b2f87a5af9ed7425a26ac575da0438f.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "obelisk": {