diff --git a/docs/cookbook.rst b/docs/cookbook.rst
index ee57d3f4..c1e409ec 100644
--- a/docs/cookbook.rst
+++ b/docs/cookbook.rst
@@ -140,7 +140,7 @@ If you use a tool like ``uv`` to lock your dependencies, you can use that inside
         session.run("pytest", *session.posargs)
 
 
-Here we run ``uv sync`` on the nox virtual environment. Other useful flags might include ``--frozen`` (won't touch the lockfile) and ``--inexact`` (will allow you to install other packages as well).
+Here we run ``uv sync`` on the nox virtual environment. Other useful flags might include ``--locked`` (validate lockfile is up-to-date) and ``--inexact`` (will allow you to install other packages as well).
 
 
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