diff --git a/nix/base-system/flake.lock b/nix/base-system/flake.lock
index 78e29c7..7375ff8 100644
--- a/nix/base-system/flake.lock
+++ b/nix/base-system/flake.lock
@@ -1423,16 +1423,15 @@
         "rust-overlay": "rust-overlay_7"
       },
       "locked": {
-        "lastModified": 1738116794,
-        "narHash": "sha256-TXTZx/cpk0Jv15t2QdXRliEME9B6bVyrA0SyHYBPKl8=",
+        "lastModified": 1739926992,
+        "narHash": "sha256-fUkGEWA0OuV95vo+5GeqamQEnK+OnYZzTZhaLNU9kTE=",
         "owner": "zaphar",
         "repo": "sheetsui",
-        "rev": "0a6807493c3e8fd9f4261135f0226d801a472d53",
+        "rev": "b5e0362a4e1b8d632b96ddc77ed99d9c8fd31feb",
         "type": "github"
       },
       "original": {
         "owner": "zaphar",
-        "ref": "main",
         "repo": "sheetsui",
         "type": "github"
       }
diff --git a/nix/base-system/flake.nix b/nix/base-system/flake.nix
index 759393e..ee4cb1e 100644
--- a/nix/base-system/flake.nix
+++ b/nix/base-system/flake.nix
@@ -13,7 +13,7 @@
       # ensure that darwinSystem uses our nixpkgs version
       inputs.nixpkgs.follows = "nixpkgs-darwin";
     };
-    sheetsui-flake.url = "github:zaphar/sheetsui/main";
+    sheetsui-flake.url = "github:zaphar/sheetsui";
     sile-flake.url = "github:sile-typesetter/sile";
     durnitisp-flake.url = "github:zaphar/durnitisp";
     runwhen-flake.url = "github:zaphar/runwhen";