diff --git a/src/tool.ts b/src/tool.ts
index d8bbacf0..420b11de 100644
--- a/src/tool.ts
+++ b/src/tool.ts
@@ -203,7 +203,7 @@ export class BaseTool {
       jsonSchema = ai.jsonSchema;
     } catch {
       throw new StackOneError(
-        'AI SDK is not installed. Please install it with: npm install ai@4.x|5.x or pnpm add ai@4.x|5.x'
+        'AI SDK is not installed. Please install it with: npm install ai@^5.0.63 or pnpm add ai@^5.0.63'
       );
     }