diff --git a/src/main/java/catering/staff/StaffManagement.java b/src/main/java/catering/staff/StaffManagement.java
index 0b84248..52a81f1 100644
--- a/src/main/java/catering/staff/StaffManagement.java
+++ b/src/main/java/catering/staff/StaffManagement.java
@@ -4,6 +4,7 @@ import java.util.Optional;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.web.bind.annotation.SessionAttributes;
 import org.springframework.stereotype.Component;
+import org.springframework.data.util.Streamable;
 
 @Component
 @Transactional
@@ -28,7 +29,7 @@ public class StaffManagement {
 		staffRepository.save(staff);
 	}
 
-	public Iterable<Staff> findAll() {
+	public Streamable<Staff> findAll() {
 		return staffRepository.findAll();
 	}