diff --git a/nix/sources.json b/nix/sources.json
index 20ba0e5f75f0f433db41573c231c9cb09805afd8..a0e96ccde57941ac5b36950987813bf2c9e64928 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -45,12 +45,12 @@
         "branch": "master",
         "description": "The Tahoe-LAFS decentralized secure filesystem.",
         "homepage": "https://tahoe-lafs.org/",
-        "owner": "tahoe-lafs",
+        "owner": "fenn-cs",
         "repo": "tahoe-lafs",
-        "rev": "be5f5839b3484c278a051f375d18952e23940677",
-        "sha256": "1f6g1ikglz6rj8wada1kzi2ybyvrpr5a6gdi2mjvvczxhpixa96s",
+        "rev": "f6a96ae3976ee21ad0376f7b6a22fc3d12110dce",
+        "sha256": "127z83c388mvxkz1qdjqdnlj5xgshyn5w5v40vda6mpyy7k9bpb4",
         "type": "tarball",
-        "url": "https://github.com/tahoe-lafs/tahoe-lafs/archive/be5f5839b3484c278a051f375d18952e23940677.tar.gz",
+        "url": "https://github.com/fenn-cs/tahoe-lafs/archive/f6a96ae3976ee21ad0376f7b6a22fc3d12110dce.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     }
 }