diff --git a/.github/workflows/update_source_data_schema_changelog.yml b/.github/workflows/update_source_data_schema_changelog.yml
index 4daba374..d1bc8f3e 100644
--- a/.github/workflows/update_source_data_schema_changelog.yml
+++ b/.github/workflows/update_source_data_schema_changelog.yml
@@ -25,8 +25,8 @@ jobs:
         run: |
           cd $GITHUB_WORKSPACE
           cp -r schemas/ new_schemas/
-          git checkout master
-          cp -r schemas/ old_schemas
+          git clone --depth 1 --branch master https://github.com/stellar/stellar-etl-airflow.git repo_master_copy
+          cp -r repo_master_copy/schemas/ old_schemas
           output=$(python3 scripts/get_source_data_schema_changelog.py)
           echo "$output" > changelog/source_data.md