diff --git a/requirements.txt b/requirements.txt
index 2b726e3..a335ed7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 flit
 tox
 pytest
-mdformat >=0.7.0,<0.8.0
+mdformat >=0.7.0,<1.1.0
 mdit_py_plugins