diff --git a/zephyr/README.md b/zephyr/README.md
index f9a4cdb413a..67fa680aa17 100644
--- a/zephyr/README.md
+++ b/zephyr/README.md
@@ -17,7 +17,7 @@ source .zephyr_venv/bin/activate
 Install requirements
 <!-- RUN install_reqs -->
 ```
-pip install west cmake==3.29 pyelftools ninja jsonschema
+pip install west "cmake<4.0.0" pyelftools ninja jsonschema
 ```
 
 Setup zephyr repo