diff --git a/.gitea/workflows/deploy.yml b/.gitea/workflows/deploy.yml
index 454cf80..5176af9 100644
--- a/.gitea/workflows/deploy.yml
+++ b/.gitea/workflows/deploy.yml
@@ -109,8 +109,8 @@ jobs:
           echo "--- Starting service ---"
           systemctl start signal-batch
 
-          # 5단계: 기동 확인 (최대 90초 — 64GB 힙 AlwaysPreTouch)
-          for i in $(seq 1 90); do
+          # 5단계: 기동 확인 (최대 180초 — 64GB 힙 AlwaysPreTouch + 캐시 워밍업)
+          for i in $(seq 1 180); do
             if curl -sf "$BASE_URL/actuator/health/liveness" > /dev/null 2>&1; then
               echo "Service started successfully (${i}s)"
               curl -s "$BASE_URL/actuator/health"
diff --git a/docs/RELEASE-NOTES.md b/docs/RELEASE-NOTES.md
index 235aed8..57e2003 100644
--- a/docs/RELEASE-NOTES.md
+++ b/docs/RELEASE-NOTES.md
@@ -4,6 +4,14 @@
 
 ## [Unreleased]
 
+## [2026-03-19]
+
+### 변경
+- CI/CD 배포 health check 대기 90초→180초 확장 — 64GB 힙 기동 타임아웃 대응
+
+### 기타
+- AIS API 접속 계정 변경
+
 ## [2026-03-18]
 
 ### 수정
diff --git a/src/main/resources/application-prod.yml b/src/main/resources/application-prod.yml
index 5bfc97c..6c00a95 100644
--- a/src/main/resources/application-prod.yml
+++ b/src/main/resources/application-prod.yml
@@ -271,8 +271,8 @@ app:
     ais-target:
       ttl-minutes: 120
   ais-api:
-    username: 7cc0517d-5ed6-452e-a06f-5bbfd6ab6ade
-    password: 2LLzSJNqtxWVD8zC
+    username: 86b30c84-5d17-41ac-8c4f-2aa20d791114
+    password: KHZQVc2tMBGtNxvG
 
 # 일일 항적 데이터 인메모리 캐시
 cache: