diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index cf6b274206..397ecda51c 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -1584,6 +1584,7 @@ jobs:
         if: ${{ !contains('["pull_request", "merge_group"]', github.event_name) }}
         run: |
           cd ${{ runner.temp }}/book
+          git config --global init.defaultBranch main
           git init
           git config user.name "Deploy from CI"
           git config user.email ""
diff --git a/ci/actions-templates/test-docs-template.yaml b/ci/actions-templates/test-docs-template.yaml
index 54e1079c7b..3a4aa62bf8 100644
--- a/ci/actions-templates/test-docs-template.yaml
+++ b/ci/actions-templates/test-docs-template.yaml
@@ -44,6 +44,7 @@ jobs: # skip-all
         if: ${{ !contains('["pull_request", "merge_group"]', github.event_name) }}
         run: |
           cd ${{ runner.temp }}/book
+          git config --global init.defaultBranch main
           git init
           git config user.name "Deploy from CI"
           git config user.email ""