diff --git a/pyproject.toml b/pyproject.toml
index d4474b8db..c853e7b04 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -43,7 +43,8 @@ dependencies = [
   "click==8.1.7",
   "grpcio-health-checking~=1.60.0",
   "pyyaml",
-  "plotly"
+  "plotly",
+  "virtualenv"
 ]
 
 [project.urls]