diff --git a/scripts/ci/common.sh b/scripts/ci/common.sh
index cdf3a3b..abec290 100755
--- a/scripts/ci/common.sh
+++ b/scripts/ci/common.sh
@@ -103,13 +103,17 @@ changelog_section() {
   local summary="$3"
   local commits="$4"
 
+  # Blank lines after ATX headings match Prettier v4 markdown formatting
+  # (see mirrors-prettier in .pre-commit-config.yaml).
   cat <<EOF
 ## [${version}] - ${date}
 
 ### Summary
+
 ${summary}
 
 ### Changed
+
 ${commits:-- (no commits recorded)}
 EOF
 }