diff --git a/pkgs/development/python-modules/matrix-nio/default.nix b/pkgs/development/python-modules/matrix-nio/default.nix
index 665167e290ea..724a1459b779 100644
--- a/pkgs/development/python-modules/matrix-nio/default.nix
+++ b/pkgs/development/python-modules/matrix-nio/default.nix
@@ -41,6 +41,7 @@ buildPythonPackage rec {
   postPatch = ''
     substituteInPlace pyproject.toml \
       --replace 'aiofiles = "^0.6.0"' 'aiofiles = "*"' \
+      --replace 'h11 = "^0.12.0"' 'h11 = "*"' \
       --replace 'jsonschema = "^3.2.0"' 'jsonschema = "*"' \
       --replace 'cachetools = { version = "^4.2.1", optional = true }' 'cachetools = { version = "*", optional = true }'
   '';