diff --git a/README.md b/README.md
index a883ed5..3f0b79c 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ environment variables:
 ## Dev
 
 ```
-pip3 install --user matrix-client
+pip3 install --user markdown matrix-nio
 ./matrix_webhook.py
 ```