diff --git a/Colab_demo.ipynb b/Colab_demo.ipynb
index 09604e4..f1a0e7e 100644
--- a/Colab_demo.ipynb
+++ b/Colab_demo.ipynb
@@ -99,6 +99,7 @@
         "id": "Qzp53hpF5ynz"
       },
       "source": [
+        "!git pull\n",
         "!nvidia-smi\n",
         "!python3 inference_video_parallel.py --exp=1 --video=demo.mp4 --skip"
       ],
@@ -111,9 +112,9 @@
         "id": "KjqnCQ_-53I7"
       },
       "source": [
-        "Try our 4 road parallel to process your video, expect 100% speedup! (Do not support montage mode)\n",
+        "Try our 4 road parallel to process your video, expect 60% speedup! (Do not support montage mode)\n",
         "\n",
-        "Unfortunately, no difference can be seen on Google colab servers."
+        "Unfortunately, no big difference can be seen on Google colab servers."
       ]
     },
     {