diff --git a/src/main/java/cn/lihongjie/coal/config/MyPostgreSQLDialect.java b/src/main/java/cn/lihongjie/coal/config/MyPostgreSQLDialect.java
index 9cd847c1..dbe03bc4 100644
--- a/src/main/java/cn/lihongjie/coal/config/MyPostgreSQLDialect.java
+++ b/src/main/java/cn/lihongjie/coal/config/MyPostgreSQLDialect.java
@@ -12,4 +12,15 @@ public class MyPostgreSQLDialect extends PostgreSQLDialect {
         }
         return super.columnType(sqlTypeCode);
     }
+
+
+    @Override
+    public String getAddForeignKeyConstraintString(String constraintName, String[] foreignKey, String referencedTable, String[] primaryKey, boolean referencesPrimaryKey) {
+        return " DROP CONSTRAINT  IF EXISTS  notexist ";
+    }
+
+    @Override
+    public String getAddForeignKeyConstraintString(String constraintName, String foreignKeyDefinition) {
+        return " DROP CONSTRAINT  IF EXISTS  notexist ";
+    }
 }
diff --git a/src/main/java/cn/lihongjie/coal/entity/PermissionEntity.java b/src/main/java/cn/lihongjie/coal/entity/PermissionEntity.java
index 6bd9929a..efd98f9d 100644
--- a/src/main/java/cn/lihongjie/coal/entity/PermissionEntity.java
+++ b/src/main/java/cn/lihongjie/coal/entity/PermissionEntity.java
@@ -1,8 +1,8 @@
 package cn.lihongjie.coal.entity;
 
 import cn.lihongjie.coal.entity.base.CommonEntity;
-import com.fasterxml.jackson.annotation.JsonManagedReference;
 import jakarta.persistence.Entity;
+import jakarta.persistence.JoinTable;
 import jakarta.persistence.ManyToMany;
 import lombok.Data;
 import org.hibernate.annotations.Comment;
@@ -15,7 +15,9 @@ import java.util.List;
 public class PermissionEntity extends CommonEntity {
 
 
-    @ManyToMany(mappedBy = "permissions")
+    @ManyToMany()
+    @JoinTable(foreignKey = @jakarta.persistence.ForeignKey(name = "none" , value = jakarta.persistence.ConstraintMode.NO_CONSTRAINT),
+            inverseForeignKey = @jakarta.persistence.ForeignKey(name = "none" , value = jakarta.persistence.ConstraintMode.NO_CONSTRAINT))
     private List<ResourceEntity> resources;
 
 
diff --git a/src/main/java/cn/lihongjie/coal/entity/ResourceEntity.java b/src/main/java/cn/lihongjie/coal/entity/ResourceEntity.java
index 3ba0e0ab..c119a92c 100644
--- a/src/main/java/cn/lihongjie/coal/entity/ResourceEntity.java
+++ b/src/main/java/cn/lihongjie/coal/entity/ResourceEntity.java
@@ -17,7 +17,7 @@ import java.util.List;
 @Slf4j
 public class ResourceEntity extends CommonEntity {
 
-    @ManyToMany
+    @ManyToMany(mappedBy = "resources")
     private List<PermissionEntity> permissions;