diff --git a/tools/install_python_dependencies.sh b/tools/install_python_dependencies.sh
index 276de58db7..a90462888f 100755
--- a/tools/install_python_dependencies.sh
+++ b/tools/install_python_dependencies.sh
@@ -34,7 +34,7 @@ update_uv
 
 # TODO: remove --no-cache once this is fixed: https://github.com/astral-sh/uv/issues/4378
 echo "installing python packages..."
-uv --no-cache sync --all-extras
+uv --no-cache sync --frozen --all-extras
 source .venv/bin/activate
 
 echo "PYTHONPATH=${PWD}" > $ROOT/.env