diff --git a/pkgs/development/python-modules/pybind11/default.nix b/pkgs/development/python-modules/pybind11/default.nix
index 475336a14cdf..46c1307826ef 100644
--- a/pkgs/development/python-modules/pybind11/default.nix
+++ b/pkgs/development/python-modules/pybind11/default.nix
@@ -13,13 +13,13 @@
 
 buildPythonPackage rec {
   pname = "pybind11";
-  version = "2.9.0";
+  version = "2.9.1";
 
   src = fetchFromGitHub {
     owner = "pybind";
     repo = pname;
     rev = "v${version}";
-    hash = "sha256-zYDgXXpn8Z1Zti8Eje8qxDvbQV70/LmezG3AtxzDG+o=";
+    hash = "sha256-wBvEWQlZhHoSCMbGgYtB3alWBLA8mA8Mz6JPLhXa3Pc=";
   };
 
   nativeBuildInputs = [ cmake ];