Update requirements-optional.txt

requirements-optional.txt

@@ -13,6 +13,9 @@ wechaty>=0.10.7
 wechaty_puppet>=0.4.23
 pysilk_mod>=1.6.0 # needed by send voice
 
+# wechatmp
+web.py
+
 # sdwebui plugin
 webuiapi>=0.6.2