diff --git a/.lgtm.yml b/.lgtm.yml
index ba170c958..78d3cc820 100644
--- a/.lgtm.yml
+++ b/.lgtm.yml
@@ -14,3 +14,6 @@ extraction:
     # We don't have any js code in our codebase, but LGTM tries to run on any HTML.
     index:
       exclude: "*"
+  python:
+    python_setup:
+      version: 2