diff --git a/pkgs/development/python-modules/aiocsv/default.nix b/pkgs/development/python-modules/aiocsv/default.nix
index 468a45e2146c..72d2626105d3 100644
--- a/pkgs/development/python-modules/aiocsv/default.nix
+++ b/pkgs/development/python-modules/aiocsv/default.nix
@@ -13,7 +13,7 @@
 
 buildPythonPackage rec {
   pname = "aiocsv";
-  version = "1.3.2";
+  version = "1.4.0";
   pyproject = true;
 
   disabled = pythonOlder "3.7";
@@ -22,7 +22,7 @@ buildPythonPackage rec {
     owner = "MKuranowski";
     repo = "aiocsv";
     tag = "v${version}";
-    hash = "sha256-NnRLBXvQj25dSHc8ZnUaPT8Oiy2EyHLIb8IJPQliyPg=";
+    hash = "sha256-cNoUrD0UP8F2W2HiSm7dQL3nhiL/h0Hr6TDsAKWb24M=";
   };
 
   build-system = [