diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 083c737..96e8edc 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -26,7 +26,7 @@ jobs:
           composer-options: "--no-dev --optimize-autoloader"
 
       - name: Install Box using Phive
-        run: phive --no-progress install humbug/box --trust-gpg-keys 41539BBD4020945DB378F98B2DF45277AEF09A2F
+        run: phive --no-progress install humbug/box@3.16.0 --trust-gpg-keys 41539BBD4020945DB378F98B2DF45277AEF09A2F
 
       - name: Build Phar
         run: ./tools/box compile