diff --git a/.github/workflows/bootstrap.yml b/.github/workflows/bootstrap.yml
index 81744c1..4e9f005 100644
--- a/.github/workflows/bootstrap.yml
+++ b/.github/workflows/bootstrap.yml
@@ -8,6 +8,7 @@ on:
     branches:
       - '*'
 env:
+  CACHE_VERSION: 1
   DEBIAN_FRONTEND: noninteractive
   HOMEBREW_NO_AUTO_UPDATE: 1