diff --git a/pkgs/development/python-modules/gymnasium/default.nix b/pkgs/development/python-modules/gymnasium/default.nix
index 89b8ba72f766..d163732a96f2 100644
--- a/pkgs/development/python-modules/gymnasium/default.nix
+++ b/pkgs/development/python-modules/gymnasium/default.nix
@@ -36,7 +36,7 @@
 
 buildPythonPackage rec {
   pname = "gymnasium";
-  version = "1.2.3";
+  version = "1.3.0";
 
   pyproject = true;
 
@@ -44,7 +44,7 @@ buildPythonPackage rec {
     owner = "Farama-Foundation";
     repo = "gymnasium";
     tag = "v${version}";
-    hash = "sha256-b712BPs7AS8UE8Zsu9GW/J6Vag9NB/x728MtQ5yrjbY=";
+    hash = "sha256-asQ/RqnmGRoVdwBkp4RIkqzGtQ7PnISt8/mRcXrNbBc=";
   };
 
   build-system = [ setuptools ];