diff --git a/nix/sources.json b/nix/sources.json
index ad6e048..3b2473c 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -5,10 +5,10 @@
         "homepage": null,
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "1dc37370c489b610f8b91d7fdd40633163ffbafd",
-        "sha256": "1qvfxf83rya7shffvmy364p79isxmzcq4dxa0lkm5b3ybicnd8f4",
+        "rev": "34ad166a830d3ac1541dcce571c52231f2f0865a",
+        "sha256": "1jvi1562x3kq65w642vfimpszv65zbc7c2nv8gakhzcx4n3f47xq",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/1dc37370c489b610f8b91d7fdd40633163ffbafd.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs/archive/34ad166a830d3ac1541dcce571c52231f2f0865a.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     }
 }