diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index bca7b5152..7b95af103 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -21,7 +21,6 @@ build:
       # quick fix for git describe
       - git fetch --unshallow || true
 
-
 python:
   install:
     - requirements: req/docs.txt
diff --git a/src/pypdfium2/version.py b/src/pypdfium2/version.py
index ea55e2360..661fe6d5a 100644
--- a/src/pypdfium2/version.py
+++ b/src/pypdfium2/version.py
@@ -11,6 +11,7 @@
 import pypdfium2_raw
 
 
+# TODO move to shared compat file
 if sys.version_info < (3, 8):
     def cached_property(func):
         return property( functools.lru_cache(maxsize=1)(func) )