diff --git a/pyproject.toml b/pyproject.toml
index e7129267..63e8d02a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -27,6 +27,7 @@ dependencies = [
     "qtmonaco~=0.7",
     "darkdetect~=0.8",
     "PySide6-QtAds==4.4.0",
+    "pylsp-bec",
 ]