diff --git a/pkgs/development/python-modules/eventlet/default.nix b/pkgs/development/python-modules/eventlet/default.nix
index 638d7c0a695a..f1077552559a 100644
--- a/pkgs/development/python-modules/eventlet/default.nix
+++ b/pkgs/development/python-modules/eventlet/default.nix
@@ -22,14 +22,14 @@
 
 buildPythonPackage rec {
   pname = "eventlet";
-  version = "0.38.2";
+  version = "0.40.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "eventlet";
     repo = "eventlet";
     tag = version;
-    hash = "sha256-oQCHnW+t4VczEFvV7neLUQTCCwRigJsUGpTRkivdyjU=";
+    hash = "sha256-fzCN+idYQ97nuDVfYn6VYQFBaaMxmnjWzFrmn+Aj+u4=";
   };
 
   nativeBuildInputs = [