diff --git a/doc/requirements.txt b/doc/requirements.txt
index cba8312..acd8cd8 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -4,5 +4,3 @@ qrcode>=4.0
 pyserial
 sphinx-rtd-theme
 setuptools-scm
-appdirs
-pyyaml