diff --git a/tools/import-normalizer/tests/test_persons_tree.py b/tools/import-normalizer/tests/test_persons_tree.py
index 0419ebcd..30d51b3b 100644
--- a/tools/import-normalizer/tests/test_persons_tree.py
+++ b/tools/import-normalizer/tests/test_persons_tree.py
@@ -50,7 +50,7 @@ def test_parse_year_unresolvable_truncated():
 
 
 def test_parse_year_typo_year():
-    # "4.3.1023" — year 1023 outside 1500-2100 guard — returns None
+    # "4.3.1023" — year 1023 outside 1700-2100 guard — returns None
     assert persons_tree._parse_year("4.3.1023") is None