diff --git a/R/app_server.R b/R/app_server.R
index 08de6b8f..3e2b1f76 100644
--- a/R/app_server.R
+++ b/R/app_server.R
@@ -7,7 +7,7 @@
 
 # Below increases the max data upload size from the Shiny default of 5MB per file
 # to 30MB for file
-options(shiny.maxRequestSize = 30 * 1024^2)
+options(shiny.maxRequestSize = 400 * 1024^2)
 options(warn = 2)
 app_server <- function(input, output, session) {
   # Your application server logic