diff --git a/src/main/java/com/gdschongik/gdsc/domain/membership/domain/Membership.java b/src/main/java/com/gdschongik/gdsc/domain/membership/domain/Membership.java
index 128836c8a..7a1e70789 100644
--- a/src/main/java/com/gdschongik/gdsc/domain/membership/domain/Membership.java
+++ b/src/main/java/com/gdschongik/gdsc/domain/membership/domain/Membership.java
@@ -16,6 +16,8 @@
 import jakarta.persistence.Id;
 import jakarta.persistence.JoinColumn;
 import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
+import jakarta.persistence.UniqueConstraint;
 import lombok.AccessLevel;
 import lombok.Builder;
 import lombok.Getter;
@@ -23,6 +25,7 @@
 
 @Entity
 @Getter
+@Table(uniqueConstraints = {@UniqueConstraint(columnNames = {"member_id", "recruitment_round_id"})})
 @NoArgsConstructor(access = AccessLevel.PROTECTED)
 public class Membership extends BaseEntity {