diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
index 9a4a51a..4499ae3 100644
--- a/src/main/resources/application.properties
+++ b/src/main/resources/application.properties
@@ -7,6 +7,7 @@ spring.datasource.username=${DB_POSTGRES_USER:solier}
 spring.datasource.password=${DB_POSTGRES_PASSWORD:solier}
 
 spring.datasource.driver-class-name=org.postgresql.Driver
+spring.datasource.hikari.maximum-pool-size=${DB_POSTGRES_HIKARI_MAX_POOL_SIZE:10}
 spring.datasource.hikari.data-source-properties.sslmode=${DB_POSTGRES_SSLMODE:disable}
 spring.datasource.hikari.data-source-properties.channelBinding=disable