diff --git a/docs/gen_api_ref_v2.py b/docs/gen_api_ref_v2.py
index 3d481f8..5bd1a43 100644
--- a/docs/gen_api_ref_v2.py
+++ b/docs/gen_api_ref_v2.py
@@ -114,7 +114,7 @@ def to_md(doc, sig):
     if not brief:
         return ''
     
-    md = f"### {brief}\n\n"
+    md = f"#### {brief}\n\n"
     
     # Clean signature
     clean = sig.strip().rstrip(';')