diff --git a/nix/sources.json b/nix/sources.json
index 1cd9b01..6f14da2 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -29,10 +29,10 @@
         "homepage": "https://github.com/NixOS/nixpkgs",
         "owner": "NixOS",
         "repo": "nixpkgs-channels",
-        "rev": "d4226e3a4b5fcf988027147164e86665d382bbfa",
-        "sha256": "15rn7i0938sfl1v857mx6kqnqjpc80vha9fafj7nkd2ncjrbn2mc",
+        "rev": "3b4df94aeb6e215085d08e3d5b0edc1313b9f584",
+        "sha256": "1z8fnqxi0zd3wmjnmc4l2s4nq812mx0h4r09zdqi5si2in6rksxs",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs-channels/archive/d4226e3a4b5fcf988027147164e86665d382bbfa.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs-channels/archive/3b4df94aeb6e215085d08e3d5b0edc1313b9f584.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixpkgs-mozilla": {
@@ -41,10 +41,10 @@
         "homepage": null,
         "owner": "mozilla",
         "repo": "nixpkgs-mozilla",
-        "rev": "e912ed483e980dfb4666ae0ed17845c4220e5e7c",
-        "sha256": "08fvzb8w80bkkabc1iyhzd15f4sm7ra10jn32kfch5klgl0gj3j3",
+        "rev": "ab9b53ebbbf9fe803e0fd7718192e7f3ba2c7759",
+        "sha256": "1v955b0km375i4ihyl3hgg3l0r3hflbwiyayn6jm0rcqlw9c6fay",
         "type": "tarball",
-        "url": "https://github.com/mozilla/nixpkgs-mozilla/archive/e912ed483e980dfb4666ae0ed17845c4220e5e7c.tar.gz",
+        "url": "https://github.com/mozilla/nixpkgs-mozilla/archive/ab9b53ebbbf9fe803e0fd7718192e7f3ba2c7759.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     }
 }