diff --git a/unit-tests/bin/install.sh b/unit-tests/bin/install.sh
index 0b6747fc8a3..8ab83ff1a13 100755
--- a/unit-tests/bin/install.sh
+++ b/unit-tests/bin/install.sh
@@ -181,6 +181,9 @@ install_deps() {
 
 	git clone --depth 1 https://github.com/woocommerce/woocommerce.git
 
+	cd "woocommerce"
+	composer install
+
 	cd "$WP_CORE_DIR"
 	php wp-cli.phar plugin activate woocommerce