diff --git a/.github/workflows/push_subrepos.yml b/.github/workflows/push_subrepos.yml
index 8d4c049f..b1a16a39 100644
--- a/.github/workflows/push_subrepos.yml
+++ b/.github/workflows/push_subrepos.yml
@@ -14,7 +14,9 @@ jobs:
           # split the git subtree.
           fetch-depth: 0
       - name: Install git-filter-repo
-        run: sudo apt-get install -y git-filter-repo
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y git-filter-repo
       - name: "Push recent commits to subrepositories"
         env:
           ACCESS_TOKEN: ${{ secrets.HEXOPS_MACH_PUSH_SUBREPOS }}