diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 3ec5d76..1af24bd 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -13,7 +13,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: lts/*
+        node-version: [lts/*]
 
     steps:
       - uses: actions/checkout@v2