diff --git a/demos/audio_tagging/README.md b/demos/audio_tagging/README.md
index eba3619e4b4d0efdfd3823f026d9154fe0b485f9..e8f6098867bc1cb84ca80b5542eddd873f885e88 100644
--- a/demos/audio_tagging/README.md
+++ b/demos/audio_tagging/README.md
@@ -16,7 +16,7 @@ Input of this demo should be a WAV file(`.wav`).
 
 Here are sample files for this demo that can be downloaded:
 ```sh
-!wget https://paddlespeech.bj.bcebos.com/PaddleAudio/cat.wav https://paddlespeech.bj.bcebos.com/PaddleAudio/dog.wav
+wget https://paddlespeech.bj.bcebos.com/PaddleAudio/cat.wav https://paddlespeech.bj.bcebos.com/PaddleAudio/dog.wav
 ```
 
 ### 3. Usage
diff --git a/demos/speech_recognition/README.md b/demos/speech_recognition/README.md
index 86bde037ad596a72a58100e2909320873a376429..deb73a96f0f5418e4eebcf8ece5e5fc29f4da7d5 100644
--- a/demos/speech_recognition/README.md
+++ b/demos/speech_recognition/README.md
@@ -16,7 +16,7 @@ Input of this demo should be a WAV file(`.wav`), and the sample rate must be sam
 
 Here are sample files for this demo that can be downloaded:
 ```sh
-!wget https://paddlespeech.bj.bcebos.com/PaddleAudio/zh.wav https://paddlespeech.bj.bcebos.com/PaddleAudio/en.wav
+wget https://paddlespeech.bj.bcebos.com/PaddleAudio/zh.wav https://paddlespeech.bj.bcebos.com/PaddleAudio/en.wav
 ```
 
 ### 3. Usage