diff --git a/gradio_app.py b/gradio_app.py
index dc51bc6..1e84732 100644
--- a/gradio_app.py
+++ b/gradio_app.py
@@ -11,7 +11,8 @@ import io
 import numpy as np
 import random
 import uuid
-
+import nltk
+nltk.download('punkt')
 
 DEMO_PATH = os.getenv("DEMO_PATH", "./demo")
 TMP_PATH = os.getenv("TMP_PATH", "./demo/temp")
diff --git a/voicecraft-gradio-colab.ipynb b/voicecraft-gradio-colab.ipynb
index fcaba98..94857f0 100644
--- a/voicecraft-gradio-colab.ipynb
+++ b/voicecraft-gradio-colab.ipynb
@@ -42,7 +42,8 @@
         "\n",
         "!pip install -e git+https://github.com/facebookresearch/audiocraft.git@c5157b5bf14bf83449c17ea1eeb66c19fb4bc7f0#egg=audiocraft\n",
         "\n",
-        "!pip install -r \"/content/VoiceCraft/gradio_requirements.txt\""
+        "!pip install -r \"/content/VoiceCraft/gradio_requirements.txt\"\n",
+        "!pip install typer==0.7.0"
       ]
     },
     {