diff --git a/spec/mongo/sdam_spec.rb b/spec/mongo/sdam_spec.rb
index <HASH>..<HASH> 100644
--- a/spec/mongo/sdam_spec.rb
+++ b/spec/mongo/sdam_spec.rb
@@ -11,7 +11,7 @@ describe 'Server Discovery and Monitoring' do
 
       before(:all) do
         Mongo::Client.new(spec.uri_string).tap do |client|
-          @client = client.with(connect_timeout: 0.1)
+          @client = client.with(connect_timeout: 0.1, heartbeat_frequency: 100)
         end.close
       end
RUBY-<I> Increase heartbeat_frequency on client used in sdam test