diff --git a/src/main/java/com/teamh/khumon/service/LearningMaterialService.java b/src/main/java/com/teamh/khumon/service/LearningMaterialService.java
index c1d06de..9567d63 100644
--- a/src/main/java/com/teamh/khumon/service/LearningMaterialService.java
+++ b/src/main/java/com/teamh/khumon/service/LearningMaterialService.java
@@ -251,6 +251,7 @@ else if(learningMaterial.getIsPriority()){
         return new ResponseEntity<HashMap>(response, HttpStatus.OK);
     }
 
+    @Transactional
     public ResponseEntity<HashMap> unsetPriority(Principal principal, Long id){
         LearningMaterial learningMaterial = learningMaterialRepository.findById(id).orElseThrow();
         HashMap<String, String> response = new HashMap<>();