diff --git a/readme.md b/readme.md
index a26a092..366ae13 100644
--- a/readme.md
+++ b/readme.md
@@ -59,6 +59,8 @@ Please open an issue if you use similar devices but still cannot achieve accepta
 | --- | --- |
 [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/lllyasviel/Fooocus/blob/main/colab.ipynb) | Fooocus Colab
 
+Note that sometimes this Colab will say like "you must restart the runtime in order to use newly installed XX". This can be safely ignored.
+
 Thanks to [camenduru](https://github.com/camenduru)'s codes!
 
 ### Linux