diff --git a/pkgs/development/python-modules/tianshou/default.nix b/pkgs/development/python-modules/tianshou/default.nix
index a63bb89cd38e..c06e0a943256 100644
--- a/pkgs/development/python-modules/tianshou/default.nix
+++ b/pkgs/development/python-modules/tianshou/default.nix
@@ -47,7 +47,7 @@
 
 buildPythonPackage rec {
   pname = "tianshou";
-  version = "1.2.0";
+  version = "2.0.0";
   pyproject = true;
 
   disabled = pythonOlder "3.11";
@@ -56,7 +56,7 @@ buildPythonPackage rec {
     owner = "thu-ml";
     repo = "tianshou";
     tag = "v${version}";
-    hash = "sha256-lJAxjE+GMwssov1r4jOCOTf5Aonu+q6FSz5oWvZpuQQ=";
+    hash = "sha256-loE2klM989yZbPZ3Uun3xnGsDHrEZhzk1R0/PcH/1nM=";
   };
 
   pythonRelaxDeps = [