diff --git a/website/migrations/0004_alter_blog_link_url_alter_event_link_url_and_more.py b/website/migrations/0004_alter_blog_link_url_alter_event_link_url_and_more.py
new file mode 100644
index 0000000..6c28d90
--- /dev/null
+++ b/website/migrations/0004_alter_blog_link_url_alter_event_link_url_and_more.py
@@ -0,0 +1,28 @@
+# Generated by Django 4.1.1 on 2024-03-25 14:18
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('website', '0003_event_image'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='blog',
+            name='link_url',
+            field=models.CharField(default='', max_length=500, verbose_name='博客链接'),
+        ),
+        migrations.AlterField(
+            model_name='event',
+            name='link_url',
+            field=models.CharField(default='', max_length=500, verbose_name='事件链接'),
+        ),
+        migrations.AlterField(
+            model_name='forum',
+            name='link_url',
+            field=models.CharField(default='', max_length=500, verbose_name='form 链接'),
+        ),
+    ]
diff --git a/website/models.py b/website/models.py
index 1d29a2f..fd18ce3 100644
--- a/website/models.py
+++ b/website/models.py
@@ -13,7 +13,7 @@ class Forum(BaseModel):
     )
     link_url = models.CharField(
         default="",
-        max_length=100,
+        max_length=500,
         unique=False,
         verbose_name='form 链接'
     )
@@ -86,7 +86,7 @@ class Blog(BaseModel):
     )
     link_url = models.CharField(
         default="",
-        max_length=100,
+        max_length=500,
         unique=False,
         verbose_name='博客链接'
     )
@@ -141,7 +141,7 @@ class Event(BaseModel):
     )
     link_url = models.CharField(
         default="",
-        max_length=100,
+        max_length=500,
         unique=False,
         verbose_name='事件链接'
     )