diff --git a/.github/workflows/npm-publish.yml b/.github/workflows/npm-publish.yml
index a764f7c..bb45e4e 100644
--- a/.github/workflows/npm-publish.yml
+++ b/.github/workflows/npm-publish.yml
@@ -11,6 +11,8 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
+        with:
+          submodules: recursive
 
       - name: Setup Node.js
         uses: actions/setup-node@v2