diff --git a/pkgs/development/python-modules/parsel/default.nix b/pkgs/development/python-modules/parsel/default.nix
index 5a779aab12b7..ee817f70665a 100644
--- a/pkgs/development/python-modules/parsel/default.nix
+++ b/pkgs/development/python-modules/parsel/default.nix
@@ -13,14 +13,14 @@
 
 buildPythonPackage rec {
   pname = "parsel";
-  version = "1.8.1";
+  version = "1.9.0";
   format = "setuptools";
 
   disabled = pythonOlder "3.7";
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-r/KOaMmz8akB2ypOPxWNhICjhyTXMo7nUcGk4cGAHjk=";
+    hash = "sha256-paa8sMX8dBVAujB1Y2/1y5aIUqeMwWroIlDl1Ib6fUg=";
   };
 
   postPatch = ''