diff --git a/pyproject.toml b/pyproject.toml
index a353a50..f8ed51b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,6 +33,7 @@ module = [
     "cairosvg",
     "sexpdata",
     "skip",
+    "fitz",
     "kipy",
     "kipy.*",
     "schematic",