diff --git a/pkgs/development/python-modules/dateutil/default.nix b/pkgs/development/python-modules/dateutil/default.nix
index 63366d93056..9c5f6145d8f 100644
--- a/pkgs/development/python-modules/dateutil/default.nix
+++ b/pkgs/development/python-modules/dateutil/default.nix
@@ -1,11 +1,11 @@
 { stdenv, buildPythonPackage, fetchPypi, six, setuptools_scm, pytest }:
 buildPythonPackage rec {
   pname = "python-dateutil";
-  version = "2.8.0";
+  version = "2.8.1";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "c89805f6f4d64db21ed966fda138f8a5ed7a4fdbc1a8ee329ce1b74e3c74da9e";
+    sha256 = "73ebfe9dbf22e832286dafa60473e4cd239f8592f699aa5adaf10050e6e1823c";
   };
 
   checkInputs = [ pytest ];