diff --git a/layer-admin/src/main/resources/application-dev.yml b/layer-admin/src/main/resources/application-dev.yml
index 941c6352..b68b603a 100644
--- a/layer-admin/src/main/resources/application-dev.yml
+++ b/layer-admin/src/main/resources/application-dev.yml
@@ -9,6 +9,9 @@ spring:
     username: ${AWS_PROD_DB_NAME}
     password: ${AWS_PROD_DB_PASSWORD}
     driver-class-name: com.mysql.cj.jdbc.Driver
+    hikari:
+      maximum-pool-size: 5  # 최대 pool 크기
+      minimum-idle: 5  # 최소 pool 크기
   jpa:
     hibernate:
       ddl-auto: validate
diff --git a/layer-admin/src/main/resources/application-prod.yml b/layer-admin/src/main/resources/application-prod.yml
index d053cad6..54120ad1 100644
--- a/layer-admin/src/main/resources/application-prod.yml
+++ b/layer-admin/src/main/resources/application-prod.yml
@@ -9,6 +9,9 @@ spring:
     username: ${AWS_PROD_DB_NAME}
     password: ${AWS_PROD_DB_PASSWORD}
     driver-class-name: com.mysql.cj.jdbc.Driver
+    hikari:
+      maximum-pool-size: 5  # 최대 pool 크기
+      minimum-idle: 5  # 최소 pool 크기
   jpa:
     hibernate:
       ddl-auto: validate
diff --git a/layer-batch/src/main/resources/application.yml b/layer-batch/src/main/resources/application.yml
index 07de1fe2..d009e947 100644
--- a/layer-batch/src/main/resources/application.yml
+++ b/layer-batch/src/main/resources/application.yml
@@ -9,6 +9,9 @@ spring:
     username: ${AWS_PROD_DB_NAME}
     password: ${AWS_PROD_DB_PASSWORD}
     driver-class-name: com.mysql.cj.jdbc.Driver
+    hikari:
+      maximum-pool-size: 5  # 최대 pool 크기
+      minimum-idle: 5  # 최소 pool 크기
   jpa:
     hibernate:
       ddl-auto: validate