diff --git a/nix/sources.json b/nix/sources.json
index df183198..cf5e309a 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -29,10 +29,10 @@
         "homepage": "https://nix-community.github.io/home-manager/",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "996b43973969b3453e23dd06d2fc19765fb31e9d",
-        "sha256": "0w7df3121djlq349xqcdav0khdz157v7wx769rd6ycln10dgn77q",
+        "rev": "0423a7b40cd29aec0bb02fa30f61ffe60f5dfc19",
+        "sha256": "03xza6ln56sx1qamr0nw06m3smk0kd2iyac9sr4vzwyha9y7acj7",
         "type": "tarball",
-        "url": "https://github.com/nix-community/home-manager/archive/996b43973969b3453e23dd06d2fc19765fb31e9d.tar.gz",
+        "url": "https://github.com/nix-community/home-manager/archive/0423a7b40cd29aec0bb02fa30f61ffe60f5dfc19.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "niv": {
@@ -53,20 +53,20 @@
         "homepage": null,
         "owner": "arcnmx",
         "repo": "nixexprs",
-        "rev": "3ec0e05ef08d1b5a2c34cc9f92fbeba77ae4a3f2",
-        "sha256": "11cb02r7spna9pyff12n5q2nm45ivphsmnclxakhrn4s1fkfqq8q",
+        "rev": "3c3aa02dbeba66837d2e7d4a9c115c588a280673",
+        "sha256": "06hywa4zh8f1fbcsiskn4vfnmqh3jvyahl5b6rwprzcq6nb3krdq",
         "type": "tarball",
-        "url": "https://github.com/arcnmx/nixexprs/archive/3ec0e05ef08d1b5a2c34cc9f92fbeba77ae4a3f2.tar.gz",
+        "url": "https://github.com/arcnmx/nixexprs/archive/3c3aa02dbeba66837d2e7d4a9c115c588a280673.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixos-mailserver": {
         "branch": "master",
         "ref": "master",
         "repo": "https://gitlab.com/simple-nixos-mailserver/nixos-mailserver",
-        "rev": "a37dac9d66b0bbfc28ca64e7efbf4ce55be94143",
-        "sha256": "160rc7w71rnysb19kp9rxzq0787azsivha72dspc5xzsijyk0977",
+        "rev": "9578dbac69ec3ddf9b2fd38a40d74332b7454dfa",
+        "sha256": "18x3zmvdlv101caccl2xp9lpnbdvi2jk636v89l17miq5i3m2iac",
         "type": "tarball",
-        "url": "https://gitlab.com/simple-nixos-mailserver/nixos-mailserver/-/archive/a37dac9d66b0bbfc28ca64e7efbf4ce55be94143.tar.gz",
+        "url": "https://gitlab.com/simple-nixos-mailserver/nixos-mailserver/-/archive/9578dbac69ec3ddf9b2fd38a40d74332b7454dfa.tar.gz",
         "url_template": "<repo>/-/archive/<rev>.tar.gz"
     },
     "nixpkgs": {
@@ -75,10 +75,10 @@
         "homepage": "",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "16105403bdd843540cbef9c63fc0f16c1c6eaa70",
-        "sha256": "0sl6hsxlh14kcs38jcra908nvi5hd8p8hlim3lbra55lz0kd9rcl",
+        "rev": "dd14e5d78e90a2ccd6007e569820de9b4861a6c2",
+        "sha256": "1zmhwx1qqgl1wrrb9mjkck508887rldrnragvximhd7jrh1ya3fb",
         "type": "tarball",
-        "url": "https://github.com/nixos/nixpkgs/archive/16105403bdd843540cbef9c63fc0f16c1c6eaa70.tar.gz",
+        "url": "https://github.com/nixos/nixpkgs/archive/dd14e5d78e90a2ccd6007e569820de9b4861a6c2.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nur": {
@@ -87,10 +87,10 @@
         "homepage": "https://nur.nix-community.org/",
         "owner": "nix-community",
         "repo": "NUR",
-        "rev": "321d8f4f58356dd40d56d3a1aac4bffb1c2947b2",
-        "sha256": "1g19gwv3hz6cmli7wh7srw59jaqnnp3hwzbyng9kb809d2mlr3f8",
+        "rev": "a18441dbc297b85ffbe3fb79a7a751286eff0a95",
+        "sha256": "1h106jnfm2g7x32snx9m927b1l9bzmx1sp91x5wjh7vkwlid99mp",
         "type": "tarball",
-        "url": "https://github.com/nix-community/NUR/archive/321d8f4f58356dd40d56d3a1aac4bffb1c2947b2.tar.gz",
+        "url": "https://github.com/nix-community/NUR/archive/a18441dbc297b85ffbe3fb79a7a751286eff0a95.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "tf-nix": {