diff --git a/analysis_options.yaml b/analysis_options.yaml
index 41ff68ac..62953a6f 100644
--- a/analysis_options.yaml
+++ b/analysis_options.yaml
@@ -11,7 +11,6 @@ linter:
 analyzer:
   errors:
     todo: ignore
-    import_of_legacy_library_into_null_safe: ignore
   exclude:
     - example/main.dart
     # needed until crypto packages upgrade