diff --git a/README.md b/README.md
index 07fb9e4b41..9c97119ba4 100644
--- a/README.md
+++ b/README.md
@@ -54,6 +54,7 @@ First, check your dependencies: Ensure that you have Ruby 2.1.5 installed:
 Install the project's gem dependencies:
 
     cd openfoodnetwork
+    ./script/upgrade_bundler.sh
     bundle install
 
 Configure the site: