1 files changed, 1 insertions, 1 deletions
diff --git a/nixpkgs/pkgs/development/python-modules/flask-migrate/default.nix b/nixpkgs/pkgs/development/python-modules/flask-migrate/default.nix
index 819c9d239231..a7a5da621630 100644
--- a/nixpkgs/pkgs/development/python-modules/flask-migrate/default.nix
+++ b/nixpkgs/pkgs/development/python-modules/flask-migrate/default.nix
@@ -20,7 +20,7 @@ buildPythonPackage rec {
   src = fetchFromGitHub {
     owner = "miguelgrinberg";
     repo = "Flask-Migrate";
-    rev = "v${version}";
+    rev = "refs/tags/v${version}";
     hash = "sha256-fdnoX7ypTpH2mQ+7Xuhzdh706Of7PIVhHQGVbe0jv1s=";
   };