diff --git a/lib/sidekiq_unique_jobs/orphans/ruby_reaper.rb b/lib/sidekiq_unique_jobs/orphans/ruby_reaper.rb
index 92af99ca..3b0ef99c 100644
--- a/lib/sidekiq_unique_jobs/orphans/ruby_reaper.rb
+++ b/lib/sidekiq_unique_jobs/orphans/ruby_reaper.rb
@@ -79,7 +79,7 @@ def call
       def expired_digests
         max_score = (start_time - reaper_timeout).to_f
 
-        conn.zrange(EXPIRING_DIGESTS, 0, max_score, byscore: true)
+        conn.zrangebyscore(EXPIRING_DIGESTS, 0, max_score)
       end
 
       #