diff --git a/pkgs/development/python-modules/fireflyalgorithm/default.nix b/pkgs/development/python-modules/fireflyalgorithm/default.nix
index a8ea25eec58c..934354dfbb18 100644
--- a/pkgs/development/python-modules/fireflyalgorithm/default.nix
+++ b/pkgs/development/python-modules/fireflyalgorithm/default.nix
@@ -10,7 +10,7 @@
 
 buildPythonPackage rec {
   pname = "fireflyalgorithm";
-  version = "0.4.5";
+  version = "0.4.6";
   pyproject = true;
 
   disabled = pythonOlder "3.9";
@@ -19,23 +19,28 @@ buildPythonPackage rec {
     owner = "firefly-cpp";
     repo = "FireflyAlgorithm";
     tag = version;
-    hash = "sha256-dJnjeJN9NI8G/haYeOiMtAl56cExqMk0iTWpaybl4nE=";
+    hash = "sha256-NMmwjKtIk8KR0YXXSXkJhiQsbjMusaLnstUWx0izCNA=";
   };
 
-  nativeBuildInputs = [ poetry-core ];
+  postPatch = ''
+    substituteInPlace pyproject.toml \
+      --replace-fail 'numpy = "^1.26.1"' ""
+  '';
 
-  propagatedBuildInputs = [ numpy ];
+  build-system = [ poetry-core ];
+
+  dependencies = [ numpy ];
 
   nativeCheckInputs = [ pytestCheckHook ];
 
   pythonImportsCheck = [ "fireflyalgorithm" ];
 
-  meta = with lib; {
+  meta = {
     description = "Implementation of the stochastic nature-inspired algorithm for optimization";
     mainProgram = "firefly-algorithm";
     homepage = "https://github.com/firefly-cpp/FireflyAlgorithm";
     changelog = "https://github.com/firefly-cpp/FireflyAlgorithm/blob/${version}/CHANGELOG.md";
-    license = licenses.mit;
-    maintainers = with maintainers; [ firefly-cpp ];
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ firefly-cpp ];
   };
 }