diff --git a/.lgtm.yml b/.lgtm.yml
index 379ccefc..41a9c6c2 100644
--- a/.lgtm.yml
+++ b/.lgtm.yml
@@ -1,3 +1,8 @@
 queries:
   - exclude: py/import-and-import-from
-  - exclude: py/polluting-import
\ No newline at end of file
+  - exclude: py/polluting-import
+
+extraction:
+  python:
+    python_setup:
+      version: 3
\ No newline at end of file