diff --git a/flare_dart/analysis_options.yaml b/flare_dart/analysis_options.yaml
index 2da0fe6..7f8d90e 100644
--- a/flare_dart/analysis_options.yaml
+++ b/flare_dart/analysis_options.yaml
@@ -2,6 +2,8 @@ analyzer:
   strong-mode:
     implicit-casts: false
     implicit-dynamic: false
+  errors:
+    unused_import: error
 
 linter:
   rules:
@@ -85,7 +87,7 @@ linter:
   - prefer_is_empty
   - prefer_is_not_empty
   - prefer_iterable_whereType
-  - prefer_mixin
+  # - prefer_mixin
   - prefer_null_aware_operators
   - prefer_typing_uninitialized_variables
   - prefer_void_to_null