diff --git a/requirements.txt b/requirements.txt
index 77197ab..7346a7e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,4 +4,5 @@ pyserial
 requests
 pypdf2
 pypiwin32
-pygeodesy==23.11.11
+# pygeodesy==23.11.11 # known good - used for radiolog 3.11.1 but since fixed by https://github.com/mrJean1/PyGeodesy/issues/79
+pygeodesy