diff --git a/backend/src/main/resources/application-deploy.yml b/backend/src/main/resources/application-deploy.yml
index b8ea6af5..7581e411 100644
--- a/backend/src/main/resources/application-deploy.yml
+++ b/backend/src/main/resources/application-deploy.yml
@@ -6,12 +6,14 @@ spring:
         password: ${SOURCE_MYSQL_PASSWORD}
         username: ${SOURCE_MYSQL_USERNAME}
         driver-class-name: com.mysql.cj.jdbc.Driver
+        maximum-pool-size: ${SOURCE_MAX_CONNECTION_POOL_SIZE}
     replica:
       hikari:
         jdbc-url: ${REPLICA_MYSQL_URL}
         password: ${REPLICA_MYSQL_PASSWORD}
         username: ${REPLICA_MYSQL_USERNAME}
         driver-class-name: com.mysql.cj.jdbc.Driver
+        maximum-pool-size: ${REPLICA_MAX_CONNECTION_POOL_SIZE}
   redis:
     host: ${REDIS_HOST}
     port: ${REDIS_PORT}
@@ -50,5 +52,12 @@ google:
   client-id: ${GOOGLE_CLIENT_ID}
   client-secret: ${GOOGLE_CLIENT_SECRET}
 
+server:
+  tomcat:
+    accept-count: ${TOMCAT_ACCEPT_COUNT}
+    threads:
+      max: ${MAX_THREAD_POOL_SIZE}
+    max-connections: ${TOMCAT_MAX_CONNENCTIONS}
+
 logging:
   config: classpath:log4j2-deploy.yml
diff --git a/backend/src/main/resources/application-develop.yml b/backend/src/main/resources/application-develop.yml
index 3334d5d4..5bb74ea0 100644
--- a/backend/src/main/resources/application-develop.yml
+++ b/backend/src/main/resources/application-develop.yml
@@ -6,14 +6,14 @@ spring:
         password: ${SOURCE_MYSQL_PASSWORD}
         username: ${SOURCE_MYSQL_USERNAME}
         driver-class-name: com.mysql.cj.jdbc.Driver
-        maximum-pool-size: ${MAX_CONNECTION_POOL_SIZE}
+        maximum-pool-size: ${SOURCE_MAX_CONNECTION_POOL_SIZE}
     replica:
       hikari:
         jdbc-url: ${REPLICA_MYSQL_URL}
         password: ${REPLICA_MYSQL_PASSWORD}
         username: ${REPLICA_MYSQL_USERNAME}
         driver-class-name: com.mysql.cj.jdbc.Driver
-        maximum-pool-size: ${MAX_CONNECTION_POOL_SIZE}
+        maximum-pool-size: ${REPLICA_MAX_CONNECTION_POOL_SIZE}
   redis:
     host: ${REDIS_HOST}
     port: ${REDIS_PORT}