diff --git a/oauth2_provider/migrations/0013_change_token_to_textfield.py b/oauth2_provider/migrations/0013_change_token_to_textfield.py
new file mode 100644
index 000000000..38a0ecd31
--- /dev/null
+++ b/oauth2_provider/migrations/0013_change_token_to_textfield.py
@@ -0,0 +1,19 @@
+# Generated by Django A.B.C on YYYY-MM-DD HH:MM
+from django.db import migrations, models
+from oauth2_provider.settings import oauth2_settings
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('oauth2_provider', '0012_add_token_checksum'),
+        migrations.swappable_dependency(oauth2_settings.REFRESH_TOKEN_MODEL)
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='refreshtoken',
+            name='token',
+            field=models.TextField(),
+        ),
+    ]
\ No newline at end of file
diff --git a/oauth2_provider/models.py b/oauth2_provider/models.py
index a76db37c0..844deb037 100644
--- a/oauth2_provider/models.py
+++ b/oauth2_provider/models.py
@@ -501,7 +501,7 @@ class AbstractRefreshToken(models.Model):
     user = models.ForeignKey(
         settings.AUTH_USER_MODEL, on_delete=models.CASCADE, related_name="%(app_label)s_%(class)s"
     )
-    token = models.CharField(max_length=255)
+    token = models.TextField()
     application = models.ForeignKey(oauth2_settings.APPLICATION_MODEL, on_delete=models.CASCADE)
     access_token = models.OneToOneField(
         oauth2_settings.ACCESS_TOKEN_MODEL,