diff --git a/problemset/serializers.py b/problemset/serializers.py
index 2e1dfd5..343ac19 100644
--- a/problemset/serializers.py
+++ b/problemset/serializers.py
@@ -232,7 +232,6 @@ class EditProblemSetBadgeSerializer(serializers.Serializer):
 class ProblemSetProgressSerializer(serializers.ModelSerializer):
     """题单进度序列化器"""
 
-    problemset = ProblemSetListSerializer()
     user = UsernameSerializer()
     completed_problems = serializers.SerializerMethodField()