diff --git a/.github/workflows/release_tarball.yml b/.github/workflows/release_tarball.yml
index a5dc8dc..491f0be 100644
--- a/.github/workflows/release_tarball.yml
+++ b/.github/workflows/release_tarball.yml
@@ -15,6 +15,9 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v2
 
+      - name: Install Hjson
+        run: npm install -g hjson
+
       - name: Make tarball
         run: |
           ./zig build