diff --git a/README.md b/README.md
index 6c8ec5e..7fc80e4 100644
--- a/README.md
+++ b/README.md
@@ -117,7 +117,7 @@ npm install --global yarn
 
 Then, install the dependencies for this project:
 ```bash
-yarn install
+yarn install --frozen-lockfile
 ```
 
 ### Tests