diff --git a/pkgs/development/python-modules/niapy/default.nix b/pkgs/development/python-modules/niapy/default.nix
index c05c0fb25a74..3f4f164b5656 100644
--- a/pkgs/development/python-modules/niapy/default.nix
+++ b/pkgs/development/python-modules/niapy/default.nix
@@ -12,7 +12,7 @@
 
 buildPythonPackage rec {
   pname = "niapy";
-  version = "2.1.0";
+  version = "2.3.1";
   pyproject = true;
 
   disabled = pythonOlder "3.7";
@@ -20,7 +20,7 @@ buildPythonPackage rec {
   src = fetchFromGitHub {
     owner = "NiaOrg";
     repo = "NiaPy";
-    rev = "refs/tags/${version}";
+    rev = "refs/tags/v${version}";
     hash = "sha256-cT5CU1r3LZ9ValJwRUA0PaISmF6kXAz40alXbWYogGA=";
   };