diff --git a/.github/workflows/mirror-main-to-master.yml b/.github/workflows/mirror-main-to-master.yml
index 368b208..885da02 100644
--- a/.github/workflows/mirror-main-to-master.yml
+++ b/.github/workflows/mirror-main-to-master.yml
@@ -13,6 +13,8 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
 
       - name: Push main to master
         run: git push origin main:master