diff --git a/Lib/fontbakery/sphinx_extensions/profile.py b/Lib/fontbakery/sphinx_extensions/profile.py
index 38abd3b1fc..cc4282c013 100644
--- a/Lib/fontbakery/sphinx_extensions/profile.py
+++ b/Lib/fontbakery/sphinx_extensions/profile.py
@@ -1,4 +1,4 @@
-from typing import Any
+from typing import Any, Optional
 
 import m2r
 from sphinx.application import Sphinx
@@ -29,7 +29,7 @@ def can_document_member(
 
     def add_content(
         self,
-        more_content: Any | None,
+        more_content: Optional[Any],
         # no_docstring: bool = False,
     ) -> None:
         super().add_content(more_content)
@@ -96,7 +96,7 @@ def can_document_member(
 
     def add_content(
         self,
-        more_content: Any | None,
+        more_content: Optional[Any],
         # no_docstring: bool = False,
     ) -> None:
         source_name = self.get_sourcename()