diff --git a/src/main/resources/application-dev.properties b/src/main/resources/application-dev.properties
index 371fa95..4f4f2d4 100644
--- a/src/main/resources/application-dev.properties
+++ b/src/main/resources/application-dev.properties
@@ -1,8 +1,8 @@
 spring.devtools.livereload.enabled=true
 
 #file upload size
-spring.servlet.multipart.max-file-size=20MB
-spring.servlet.multipart.max-request-size=100MB
+spring.servlet.multipart.max-file-size=200MB
+spring.servlet.multipart.max-request-size=500MB
 
 #thymeleaf
 spring.thymeleaf.prefix=classpath:templates/
diff --git a/src/main/resources/application-prod.properties b/src/main/resources/application-prod.properties
index 0bf2ae4..4ece5ce 100644
--- a/src/main/resources/application-prod.properties
+++ b/src/main/resources/application-prod.properties
@@ -1,7 +1,7 @@
 
 #file upload size
-spring.servlet.multipart.max-file-size=20MB
-spring.servlet.multipart.max-request-size=100MB
+spring.servlet.multipart.max-file-size=200MB
+spring.servlet.multipart.max-request-size=500MB
 
 #thymeleaf
 spring.thymeleaf.prefix=classpath:templates/
diff --git a/src/main/resources/static/js/board/contentWrite.js b/src/main/resources/static/js/board/contentWrite.js
index 926f0ba..0535e7d 100644
--- a/src/main/resources/static/js/board/contentWrite.js
+++ b/src/main/resources/static/js/board/contentWrite.js
@@ -191,13 +191,13 @@ function contentCheck(){
     for(const file of files) {
       if(!file.isDelete){
         totalSize+=file.size;
-        if(file.size>20971520){
-          alert("파일당 사이즈는 20MB을 넘길 수 없습니다.")
+        if(file.size>209715200){
+          alert("파일당 사이즈는 200MB을 넘길 수 없습니다.")
         }
       }
     }
-    if(totalSize>104857600){
-      alert("첨부파일의 용량 합은 100MB를 넘길 수 없습니다.")
+    if(totalSize>524288000){
+      alert("첨부파일의 용량 합은 500MB를 넘길 수 없습니다.")
     }
   }
   return flag;