diff --git a/setup.py b/setup.py
index 99b45c7e..a63f391a 100644
--- a/setup.py
+++ b/setup.py
@@ -14,8 +14,11 @@
 
 docs_requires = [
     "mkautodoc",
-    "mkdocs<1.4",
+    "mkdocs>=1.3.0,<1.4",
     "portray",
+    "mkdocs-material-extensions>=1.0.3",
+    "pygments>=2.10,<2.12",
+    "pymdown-extensions>=9.0,<9.4",
 ]
 
 install_requires = [