diff --git a/packages/ui/src/components/instance/instance-shell2.tsx b/packages/ui/src/components/instance/instance-shell2.tsx
index a29a9f39..308cb81c 100644
--- a/packages/ui/src/components/instance/instance-shell2.tsx
+++ b/packages/ui/src/components/instance/instance-shell2.tsx
@@ -88,9 +88,9 @@ interface InstanceShellProps {
   tabBarOffset: number
 }
 
-const DEFAULT_SESSION_SIDEBAR_WIDTH = 280
+const DEFAULT_SESSION_SIDEBAR_WIDTH = 340
 const MIN_SESSION_SIDEBAR_WIDTH = 220
-const MAX_SESSION_SIDEBAR_WIDTH = 360
+const MAX_SESSION_SIDEBAR_WIDTH = 400
 const RIGHT_DRAWER_WIDTH = 260
 const MIN_RIGHT_DRAWER_WIDTH = 200
 const MAX_RIGHT_DRAWER_WIDTH = 380