diff --git a/docs/requirements.txt b/docs/requirements.txt
index b7ee962d5..b4baefee9 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,4 +1,4 @@
 sphinx==5.3.0
-readthedocs-sphinx-ext==2.1.9 # ??
+readthedocs-sphinx-ext==2.2.5 # ??
 sphinx-rtd-theme
 myst-parser==0.18.1