diff --git a/README.md b/README.md
index 8727a32..38c0038 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ Our paper can be downloaded from [[Arxiv]](https://arxiv.org/pdf/2106.06340v1.pd
 
 ## Top News
 
-**`2021-06-20`**: We release the scripts for arbitrary video and image processing.
+**`2021-06-20`**: We release the scripts for arbitrary video and image processing, and a colab demo.
 
 ## Dependencies
 - python3.6+
@@ -32,6 +32,8 @@ Our paper can be downloaded from [[Arxiv]](https://arxiv.org/pdf/2106.06340v1.pd
 
 [Inference for image or video face swapping](./doc/guidance/usage.md)
 
+[Colab demo](https://colab.research.google.com/github/neuralchen/SimSwap/blob/main/SimSwap%20colab.ipynb)
+
 Training: **coming soon**
 
 
diff --git a/doc/guidance/preparation.md b/doc/guidance/preparation.md
index d2704a4..63fd8a6 100644
--- a/doc/guidance/preparation.md
+++ b/doc/guidance/preparation.md
@@ -25,4 +25,4 @@ There are two archive files in the drive: **checkpoints.zip** and **arcface_chec
 [[Baidu Drive]](https://pan.baidu.com/s/1wFV11RVZMHqd-ky4YpLdcA) Password: ```jd2v```
 
 ### Note
-We expect users to have GPU with at least 8G memory. For those who do not, we will provide Colab Notebook implementation in the future.
+We expect users to have GPU with at least 8G memory. For those who do not, we provide [[Colab Notebook implementation]](https://colab.research.google.com/github/neuralchen/SimSwap/blob/main/SimSwap%20colab.ipynb).