diff --git a/README.md b/README.md
index f6cf94e..53ea4d7 100644
--- a/README.md
+++ b/README.md
@@ -32,7 +32,7 @@ django tag input field
 ```shell
 pip install django-tagify2
 or
-pip install --index-url https://pypi.org/simple/django-tagify2 
+pip install --index-url https://pypi.org/simple/ django-tagify2 
 ```
 
 * Add 'tagify' application to the INSTALLED_APPS
diff --git a/README.rst b/README.rst
index 40f0fd5..c1d5983 100644
--- a/README.rst
+++ b/README.rst
@@ -5,7 +5,7 @@ django-tagify2
 
 django tag input field
 
-.. figure:: https://github.com/gojuukaze/django-tagify2/blob/master/demo.gif?raw=true
+.. figure:: https://github.com/gojuukaze/django-tagify2/blob/master/demo2.gif?raw=true
    :alt: alt tag
 
    alt tag
@@ -42,7 +42,7 @@ Installation
 
    pip install django-tagify2
    or
-   pip install --index-url https://pypi.org/simple/django-tagify2
+   pip install --index-url https://pypi.org/simple/ django-tagify2
 
 -  Add ‘tagify’ application to the INSTALLED_APPS
 
diff --git a/example/migrations/0001_initial.py b/example/migrations/0001_initial.py
index e9660c3..c6dd51b 100644
--- a/example/migrations/0001_initial.py
+++ b/example/migrations/0001_initial.py
@@ -1,4 +1,4 @@
-# Generated by Django 3.1.8 on 2021-06-03 08:51
+# Generated by Django 3.1.8 on 2021-06-03 11:16
 
 from django.db import migrations, models
 import tagify.models
diff --git a/setup.py b/setup.py
index 7952cbb..27ba7cb 100644
--- a/setup.py
+++ b/setup.py
@@ -7,7 +7,7 @@
 
 setup(
     name='django-tagify2',
-    version='1.0.4',
+    version='1.0.5',
     description='django tag input field using tagify.js',
     url='https://github.com/gojuukaze/django-tagify2',
     author="gojuukaze",
diff --git a/tagify/models.py b/tagify/models.py
index 888be41..3d8583a 100644
--- a/tagify/models.py
+++ b/tagify/models.py
@@ -17,10 +17,7 @@ def __init__(self, place_holder='', delimiters=' ', data_list=None,
         self.tag_args['max_tags'] = max_tags
 
     def get_internal_type(self):
-        return "CharField"
-
-    def get_prep_value(self, value):
-        return self.delimiters.join(value)
+        return "TextField"
 
     def get_db_prep_value(self, value, connection, prepared=False):
         return self.delimiters.join(value)