diff --git a/pkgs/development/python-modules/waitress/default.nix b/pkgs/development/python-modules/waitress/default.nix
index e2cbe59ab28..898b1093159 100644
--- a/pkgs/development/python-modules/waitress/default.nix
+++ b/pkgs/development/python-modules/waitress/default.nix
@@ -5,11 +5,11 @@
 
 buildPythonPackage rec {
   pname = "waitress";
-  version = "2.1.1";
+  version = "2.1.2";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "sha256-4uYFds8UoVOdp597fuHnmnHmTzZqC0fbVKFelx9XuxY=";
+    sha256 = "780a4082c5fbc0fde6a2fcfe5e26e6efc1e8f425730863c04085769781f51eba";
   };
 
   doCheck = false;