diff --git a/.lgtm.yml b/.lgtm.yml
index c36bdbb55e..2f2a31f292 100644
--- a/.lgtm.yml
+++ b/.lgtm.yml
@@ -9,3 +9,6 @@ extraction:
       build_command:
       - "cd build"
       - "ninja"
+  python:
+    python_setup:
+      version: 3