diff --git a/pkgs/development/python-modules/matrix-nio/default.nix b/pkgs/development/python-modules/matrix-nio/default.nix
index 3e613fd89a50..4fad524bfa73 100644
--- a/pkgs/development/python-modules/matrix-nio/default.nix
+++ b/pkgs/development/python-modules/matrix-nio/default.nix
@@ -38,6 +38,11 @@ buildPythonPackage rec {
     sha256 = "QHNirglqSxGMmbST96LUp9MHoGj0yAwLoTRlsbMqwaM=";
   };
 
+  postPatch = ''
+    substituteInPlace pyproject.toml \
+      --replace 'aiofiles = "^0.6.0"' 'aiofiles = "*"'
+  '';
+
   nativeBuildInputs = [
     git
     poetry-core