diff --git a/docs/high-availability/hystrix-circuit-breaker.md b/docs/high-availability/hystrix-circuit-breaker.md
index eed1c5a4570a417c3fbf79fbfa4b11cb7b1a8b4a..a446f26ea9f96c94fb3412a47e0a7e87386cee1b 100644
--- a/docs/high-availability/hystrix-circuit-breaker.md
+++ b/docs/high-availability/hystrix-circuit-breaker.md
@@ -197,5 +197,4 @@ ProductInfo(id=1, name=iphone7手机, price=5599.0, pictureList=a.jpg,b.jpg, spe
 ### 参考内容
 
 1. [Hystrix issue 1459](https://github.com/Netflix/Hystrix/issues/1459)
-2. [Hystrix Metrics](https://github.com/Netflix/Hystrix/wiki/Configuration#metrics)
-3. 
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+2. [Hystrix Metrics](https://github.com/Netflix/Hystrix/wiki/Configuration#metrics)
\ No newline at end of file