diff --git a/pkgs/development/python-modules/flask-sqlalchemy/default.nix b/pkgs/development/python-modules/flask-sqlalchemy/default.nix
index 550d9adf416f..7146c38e5a30 100644
--- a/pkgs/development/python-modules/flask-sqlalchemy/default.nix
+++ b/pkgs/development/python-modules/flask-sqlalchemy/default.nix
@@ -3,7 +3,7 @@
 , fetchPypi
 , flask
 , mock
-, pdm-pep517
+, flit-core
 , pytestCheckHook
 , pythonOlder
 , sqlalchemy
@@ -11,19 +11,19 @@
 
 buildPythonPackage rec {
   pname = "flask-sqlalchemy";
-  version = "3.0.3";
+  version = "3.1.1";
   format = "pyproject";
 
   disabled = pythonOlder "3.9";
 
   src = fetchPypi {
-    pname = "Flask-SQLAlchemy";
+    pname = "flask_sqlalchemy";
     inherit version;
-    hash = "sha256-J2QzXzydfr3J7WBEr6+Yqun6UNegdM71Xd4wfslZA+w=";
+    hash = "sha256-5LaLuIGALdoafYeLL8hMBtHuV/tAuHTT3Jfav6NrgxI=";
   };
 
   nativeBuildInputs = [
-    pdm-pep517
+    flit-core
   ];
 
   propagatedBuildInputs = [