diff --git a/web/app/components/workflow/block-selector/all-tools.tsx b/web/app/components/workflow/block-selector/all-tools.tsx
index 08eac3f8c..50d10541e 100644
--- a/web/app/components/workflow/block-selector/all-tools.tsx
+++ b/web/app/components/workflow/block-selector/all-tools.tsx
@@ -204,7 +204,7 @@ const AllTools = ({
   }, [onSelect])
 
   return (
-    <div className={cn('min-w-[400px] max-w-[500px]', className)}>
+    <div className={cn('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'>
           {
diff --git a/web/app/components/workflow/block-selector/blocks.tsx b/web/app/components/workflow/block-selector/blocks.tsx
index cae1ec32a..16256bf34 100644
--- a/web/app/components/workflow/block-selector/blocks.tsx
+++ b/web/app/components/workflow/block-selector/blocks.tsx
@@ -134,7 +134,7 @@ const Blocks = ({
   }, [groups, onSelect, t, store])
 
   return (
-    <div className='max-h-[480px] min-w-[400px] max-w-[500px] overflow-y-auto p-1'>
+    <div className='max-h-[480px] max-w-[500px] overflow-y-auto p-1'>
       {
         isEmpty && (
           <div className='flex h-[22px] items-center px-3 text-xs font-medium text-text-tertiary'>{t('workflow.tabs.noResult')}</div>