diff --git a/pkgs/development/python-modules/azure-cosmos/default.nix b/pkgs/development/python-modules/azure-cosmos/default.nix
index aea811201587..7f26998b10d7 100644
--- a/pkgs/development/python-modules/azure-cosmos/default.nix
+++ b/pkgs/development/python-modules/azure-cosmos/default.nix
@@ -10,14 +10,15 @@
 
 buildPythonPackage rec {
   pname = "azure-cosmos";
-  version = "4.7.0";
+  version = "4.9.0";
   pyproject = true;
 
   disabled = pythonOlder "3.8";
 
   src = fetchPypi {
-    inherit pname version;
-    hash = "sha256-ctcUAzE0ZWMCouiVfEuTWQZzvSiLDKYMsSPjSK6ZokE=";
+    pname = "azure_cosmos";
+    inherit version;
+    hash = "sha256-xw20y/VbD/Jh7Xu4qjJaXfpWXTxuqkPXXSauXirW108=";
   };
 
   build-system = [ setuptools ];