diff --git a/nix/sources.json b/nix/sources.json
index ced9caf..9b92189 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -1,14 +1,14 @@
 {
-    "crate2nix": {
+    "cargo2nix": {
         "branch": "master",
-        "description": "nix build file generator for rust crates",
+        "description": "Convert a Cargo.lock to mkRustCrate statements for import in Nix",
         "homepage": "",
-        "owner": "kolloch",
-        "repo": "crate2nix",
-        "rev": "a76b8d3dfb63271dc82fba1743482ac648ca1f39",
-        "sha256": "0ll3cpkh93vqaf21hs8c4avrzjb53vm6akj12d45llh5mnbz58cw",
+        "owner": "tenx-tech",
+        "repo": "cargo2nix",
+        "rev": "7bc062ccffc41dc7d3759b8b797e8b4f8dd23a15",
+        "sha256": "1z7xwk1hbp26aydsk3y07riy0ivwqss06n1470mvdl7allfcd1w5",
         "type": "tarball",
-        "url": "https://github.com/kolloch/crate2nix/archive/a76b8d3dfb63271dc82fba1743482ac648ca1f39.tar.gz",
+        "url": "https://github.com/tenx-tech/cargo2nix/archive/7bc062ccffc41dc7d3759b8b797e8b4f8dd23a15.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "niv": {
@@ -17,10 +17,10 @@
         "homepage": "https://github.com/nmattia/niv",
         "owner": "nmattia",
         "repo": "niv",
-        "rev": "2ecfd86b631714b457e56d70dd83fa60435baeb6",
-        "sha256": "01j6727cws8blg1npp54b4w6xa0gpgyzhyws2vqgp8clnlnmqqhi",
+        "rev": "98c74a80934123cb4c3bf3314567f67311eb711a",
+        "sha256": "1w8n54hapd4x9f1am33icvngkqns7m3hl9yair38yqq08ffwg0kn",
         "type": "tarball",
-        "url": "https://github.com/nmattia/niv/archive/2ecfd86b631714b457e56d70dd83fa60435baeb6.tar.gz",
+        "url": "https://github.com/nmattia/niv/archive/98c74a80934123cb4c3bf3314567f67311eb711a.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixpkgs": {
@@ -29,10 +29,22 @@
         "homepage": "https://github.com/NixOS/nixpkgs",
         "owner": "NixOS",
         "repo": "nixpkgs-channels",
-        "rev": "cc1ae9f21b9e0ce998e706a3de1bad0b5259f22d",
-        "sha256": "0zjafww05h50ncapw51b5qxgbv9prjyag0j22jnfc3kcs5xr4ap0",
+        "rev": "053ad4e0db7241ae6a02394d62750fdc5d64aa9f",
+        "sha256": "11l9sr8zg8j1n5p43zjkqwpj59gn8c84z1kf16icnsbnv2smzqdc",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs-channels/archive/cc1ae9f21b9e0ce998e706a3de1bad0b5259f22d.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs-channels/archive/053ad4e0db7241ae6a02394d62750fdc5d64aa9f.tar.gz",
+        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
+    },
+    "nixpkgs-mozilla": {
+        "branch": "master",
+        "description": "mozilla related nixpkgs (extends nixos/nixpkgs repo)",
+        "homepage": null,
+        "owner": "mozilla",
+        "repo": "nixpkgs-mozilla",
+        "rev": "e912ed483e980dfb4666ae0ed17845c4220e5e7c",
+        "sha256": "08fvzb8w80bkkabc1iyhzd15f4sm7ra10jn32kfch5klgl0gj3j3",
+        "type": "tarball",
+        "url": "https://github.com/mozilla/nixpkgs-mozilla/archive/e912ed483e980dfb4666ae0ed17845c4220e5e7c.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     }
 }