diff --git a/posts/2025-09-07-chatgpt-agent-ci-cd-migration.md b/posts/2025-09-07-chatgpt-agent-ci-cd-migration.md
index 39ce3c7..11a6734 100644
--- a/posts/2025-09-07-chatgpt-agent-ci-cd-migration.md
+++ b/posts/2025-09-07-chatgpt-agent-ci-cd-migration.md
@@ -1,6 +1,5 @@
 ---
 title: "ChatGPTエージェントによるCI/CD移行の記録"
-date: 2025-09-07
 is_draft: false
 ---