diff --git a/nix/sources.json b/nix/sources.json
index 8e7a6a2..d5ef012 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -26,7 +26,7 @@
     "nix-hexchen": {
         "branch": "main",
         "repo": "https://gitlab.com/hexchen/nixfiles.git",
-        "rev": "eeacd84d9576e9e957c4e413b7475c61c917f924",
+        "rev": "431512d85fb08b2e9e5a73f39e23c0d0c1b8bc06",
         "type": "git"
     },
     "nixos-mailserver": {
@@ -44,10 +44,10 @@
         "homepage": "",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "ec3b7fca65e9b2e82485604477599f8f7b7fb2b6",
-        "sha256": "1nppbpfpwpsybi5x3kp8g6zc4ikxmqjyv46ca754achdmpjm8681",
+        "rev": "f8929dce13e729357f31d5b2950cbb097744bed7",
+        "sha256": "06ikqdb5038vkkyx4hi5lw4gksjjndjg7mz0spawnb1gpzhqkavs",
         "type": "tarball",
-        "url": "https://github.com/nixos/nixpkgs/archive/ec3b7fca65e9b2e82485604477599f8f7b7fb2b6.tar.gz",
+        "url": "https://github.com/nixos/nixpkgs/archive/f8929dce13e729357f31d5b2950cbb097744bed7.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixpkgs-unstable": {
@@ -56,10 +56,10 @@
         "homepage": "",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "29b0d4d0b600f8f5dd0b86e3362a33d4181938f9",
-        "sha256": "10cafssjk6wp7lr82pvqh8z7qiqwxpnh8cswnk1fbbw2pacrqxr1",
+        "rev": "f5e8bdd07d1afaabf6b37afc5497b1e498b8046f",
+        "sha256": "1fmwkb2wjfrpx8fis4x457vslam0x8vqlpfwqii6p9vm33dyxhzk",
         "type": "tarball",
-        "url": "https://github.com/nixos/nixpkgs/archive/29b0d4d0b600f8f5dd0b86e3362a33d4181938f9.tar.gz",
+        "url": "https://github.com/nixos/nixpkgs/archive/f5e8bdd07d1afaabf6b37afc5497b1e498b8046f.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "pbb-nixfiles": {