diff --git a/nix/sources.json b/nix/sources.json
index 7631d85..414d59c 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -86,10 +86,10 @@
         "homepage": "",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "da45bf6ec7bbcc5d1e14d3795c025199f28e0de0",
-        "sha256": "0f4f9xh4rkgk9in2hzwm371vahppdixbdb73ki1v5dq1r2iv015h",
+        "rev": "e56990880811a451abd32515698c712788be5720",
+        "sha256": "0pxyn7lh72ghwwp9yfxzd3ac03j05jpjiw87ckfdi29zc6ahhqr2",
         "type": "tarball",
-        "url": "https://github.com/nixos/nixpkgs/archive/da45bf6ec7bbcc5d1e14d3795c025199f28e0de0.tar.gz",
+        "url": "https://github.com/nixos/nixpkgs/archive/e56990880811a451abd32515698c712788be5720.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     }
 }