diff --git a/pkgs/development/python-modules/flake8-import-order/default.nix b/pkgs/development/python-modules/flake8-import-order/default.nix
index 5709b17c524a..8099f3318e86 100644
--- a/pkgs/development/python-modules/flake8-import-order/default.nix
+++ b/pkgs/development/python-modules/flake8-import-order/default.nix
@@ -2,11 +2,11 @@
 
 buildPythonPackage rec {
   pname = "flake8-import-order";
-  version = "0.18";
+  version = "0.18.1";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "9be5ca10d791d458eaa833dd6890ab2db37be80384707b0f76286ddd13c16cbf";
+    sha256 = "14kfvsagqc6lrplvf3x58ia6x744bk8fj91wmk0hcipa8naw73d2";
   };
 
   propagatedBuildInputs = [ pycodestyle ] ++ lib.optional (!isPy3k) enum34;