diff --git a/pkgs/development/python-modules/qpsolvers/default.nix b/pkgs/development/python-modules/qpsolvers/default.nix
index 367416c29602..1ab12f28412c 100644
--- a/pkgs/development/python-modules/qpsolvers/default.nix
+++ b/pkgs/development/python-modules/qpsolvers/default.nix
@@ -14,14 +14,14 @@
 }:
 buildPythonPackage rec {
   pname = "qpsolvers";
-  version = "3.4.0";
+  version = "4.0.0";
   format = "pyproject";
 
   src = fetchFromGitHub {
     owner = "qpsolvers";
     repo = "qpsolvers";
-    rev = "v${version}";
-    hash = "sha256-GrYAhTWABBvU6rGoHi00jBa7ryjCNgzO/hQBTdSW9cg=";
+    rev = "refs/tags/v${version}";
+    hash = "sha256-KkV61pBkIh+4Qav9TVobEBUCyMa6Xqg+eygnOoQRpcQ=";
   };
 
   pythonImportsCheck = [ "qpsolvers" ];