diff --git a/src/main/java/com/easylead/easylead/config/AsyncConfig.java b/src/main/java/com/easylead/easylead/config/AsyncConfig.java
index 33f6aa7..80ee691 100644
--- a/src/main/java/com/easylead/easylead/config/AsyncConfig.java
+++ b/src/main/java/com/easylead/easylead/config/AsyncConfig.java
@@ -3,17 +3,21 @@
 import java.util.concurrent.Executor;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.scheduling.annotation.AsyncConfigurer;
+import org.springframework.scheduling.annotation.EnableAsync;
 import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
 
 @Configuration
-public class AsyncConfig {
+@EnableAsync
+public class AsyncConfig implements AsyncConfigurer, WebMvcConfigurer {
 
   @Bean(name = "taskExecutor1")
   public Executor taskExecutor1() {
     ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
-    executor.setCorePoolSize(5);
-    executor.setMaxPoolSize(10);
-    executor.setQueueCapacity(25);
+    executor.setCorePoolSize(10);
+    executor.setMaxPoolSize(50);
+    executor.setQueueCapacity(100);
     executor.setThreadNamePrefix("Async-");
     executor.initialize();
     return executor;
@@ -22,9 +26,9 @@ public Executor taskExecutor1() {
   @Bean(name = "taskExecutor2")
   public Executor taskExecutor2() {
     ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
-    executor.setCorePoolSize(5);
-    executor.setMaxPoolSize(10);
-    executor.setQueueCapacity(25);
+    executor.setCorePoolSize(10);
+    executor.setMaxPoolSize(50);
+    executor.setQueueCapacity(100);
     executor.setThreadNamePrefix("Async-2-");
     executor.initialize();
     return executor;
diff --git a/src/main/java/com/easylead/easylead/domain/books/service/AladinService.java b/src/main/java/com/easylead/easylead/domain/books/service/AladinService.java
index 8d63f4d..eb46fc6 100644
--- a/src/main/java/com/easylead/easylead/domain/books/service/AladinService.java
+++ b/src/main/java/com/easylead/easylead/domain/books/service/AladinService.java
@@ -48,7 +48,7 @@ public JsonNode search(String title, String author, String publisher) throws Jso
 
         HttpRequest request = HttpRequest.newBuilder()
                 .uri(URI.create("http://www.aladin.co.kr/ttb/api/ItemSearch.aspx?TTBKey="+aladinApiKey+
-                        "&Query="+ encodedQuery +"&Output=JS")).build();
+                        "&Query="+ encodedQuery +"&Output=JS&Cover=Big")).build();
 
         log.info(query);
 
@@ -76,7 +76,7 @@ public BookInfoResDTO search(String isbn) throws JsonProcessingException {
 
         HttpRequest request = HttpRequest.newBuilder()
                 .uri(URI.create("http://www.aladin.co.kr/ttb/api/ItemLookUp.aspx?TTBKey="+aladinApiKey+
-                        "&ItemId="+ isbn +"&Output=JS")).build();
+                        "&ItemId="+ isbn +"&Output=JS&Cover=Big")).build();
 
 
         HttpClient client = HttpClient.newHttpClient();