diff --git a/requirements.txt b/requirements.txt
index 074e221..33965c6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,6 +13,7 @@ sphinxcontrib.asciinema==0.3.2
 paramiko==2.7.2
 pymetasploit3==1.0.3
 pylint
+flask
 
 # Mypy stuff
 mypy