diff --git a/pyproject.toml b/pyproject.toml
index 6077c95..8f59e39 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -40,6 +40,7 @@ MechanicalSoup = "1.3.0"
 builtwith = "1.3.4"
 dnspython = "2.6.1"
 lxml = "5.2.2"
+openpyxl = "3.1.2"
 
 
 [tool.poetry.scripts]