diff --git a/requirements.txt b/requirements.txt
index 5e10e7cd4..af1b49389 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,6 +27,7 @@ marshmallow==3.11.1
 outcome==1.1.0
 priority==1.3.0
 pydantic==1.8.1
+pyngrok==5.0.5
 pypng==0.0.20
 pyqrcode==1.2.1
 pyscss==1.3.7