diff --git a/test/log_subscriber_test.rb b/test/log_subscriber_test.rb
index d3925fd..65b4b9b 100644
--- a/test/log_subscriber_test.rb
+++ b/test/log_subscriber_test.rb
@@ -44,6 +44,9 @@ class LogSubscriberTest < Minitest::Test
   end
 
   def test_reindex_relation
+    # where.not not supported
+    skip if mongoid? && Mongoid::VERSION.to_i < 7
+
     products = create_products
     output = capture_logs do
       Product.where.not(id: products.last.id).reindex
--
libgit2 0.21.0