diff --git a/README.md b/README.md
index 217411a..142785b 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,7 @@ Fuwuqi (fúwùqì or 服务器 means "server" in Chinese) is a useless C2S Activ
 You will need:
 1. 1x server with a domain name and reverse proxy
 2. 1x client device (can be same as server)
+3. 2x Python, `cryptography`, `requests` on both server and client
 3. 1x brain fluent in Python and ActivityPub
 4. 1x pain tolerance