diff --git a/pkgs/by-name/fl/flatter/package.nix b/pkgs/by-name/fl/flatter/package.nix
index 216dc3138cbd..b9d95d63924f 100644
--- a/pkgs/by-name/fl/flatter/package.nix
+++ b/pkgs/by-name/fl/flatter/package.nix
@@ -14,13 +14,13 @@
 
 stdenv.mkDerivation {
   pname = "flatter";
-  version = "0-unstable-2025-03-28";
+  version = "0-unstable-2025-08-12";
 
   src = fetchFromGitHub {
     owner = "keeganryan";
     repo = "flatter";
-    rev = "13c4ef0f0abe7ad5db88b19a9196c00aa5cf067c";
-    hash = "sha256-k0FcIJARaXi602eqMSum+q1IaCs30Xi0hB/ZNNkXruw=";
+    rev = "7757f6c1166ce5feda1cb829736976b8d20741fc";
+    hash = "sha256-n/JtSdX8kZIEXcxj344APRo7fuRIR8+ZeUnk7QX8f3Q=";
   };
 
   strictDeps = true;