diff --git a/.github/workflows/release-finalize.yml b/.github/workflows/release-finalize.yml
index 912623e..4a7d6eb 100644
--- a/.github/workflows/release-finalize.yml
+++ b/.github/workflows/release-finalize.yml
@@ -88,20 +88,15 @@ jobs:
               notes=$(printf 'upstream openai/codex %s 追従。' "$VER")
             fi
           fi
-          entry=$(cat <<RELNOTES_EOF_9f3a2b
-## ${VER} — ${date_str}
-
-${notes}
-
-### Install
-
-\`\`\`sh
-npm install -g @bash0816/codex-termux@${VER}
-codex --version
-\`\`\`
-
-RELNOTES_EOF_9f3a2b
-)
+          entry=$(
+            printf '## %s — %s\n\n' "$VER" "$date_str"
+            printf '%s\n\n' "$notes"
+            printf '### Install\n\n'
+            printf '```sh\n'
+            printf 'npm install -g @bash0816/codex-termux@%s\n' "$VER"
+            printf 'codex --version\n'
+            printf '```\n\n'
+          )
           if [ -f RELEASES.md ] && grep -qE "^## ${VER}([[:space:]]|$)" RELEASES.md; then
             echo "RELEASES.md already has ${VER} entry"
           else