diff --git a/web/app/components/workflow/block-selector/all-tools.tsx b/web/app/components/workflow/block-selector/all-tools.tsx
index 45ed5c4693..472cb452b2 100644
--- a/web/app/components/workflow/block-selector/all-tools.tsx
+++ b/web/app/components/workflow/block-selector/all-tools.tsx
@@ -111,7 +111,7 @@ const AllTools = ({
   const isSupportGroupView = [ToolTypeEnum.All, ToolTypeEnum.BuiltIn].includes(activeTab)
 
   return (
-    <div className={cn('max-w-[500px]', className)}>
+    <div className={cn('min-w-[400px] max-w-[500px]', className)}>
       <div className='flex items-center justify-between border-b border-divider-subtle px-3'>
         <div className='flex h-8 items-center space-x-1'>
           {