diff --git a/setup.py b/setup.py
index a63f391a..b798c17e 100644
--- a/setup.py
+++ b/setup.py
@@ -18,7 +18,7 @@
     "portray",
     "mkdocs-material-extensions>=1.0.3",
     "pygments>=2.10,<2.12",
-    "pymdown-extensions>=9.0,<9.4",
+    "pymdown-extensions>=9.4,<9.5",
 ]
 
 install_requires = [