diff --git a/requirements.txt b/requirements.txt
index cb576a41a08ec6e0cd171d57442fb9dc29c36899..78b467e840954baef485084206251f1d8348899a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,6 +11,7 @@ mock==4.0.3
 numpy==1.19.5
 pandas==1.1.5
 psutil==5.8.0
+pydot==1.4.2
 pytest==6.2.2
 requests==2.25.1
 scipy==1.5.2