diff --git a/README.md b/README.md
index 87b2dd1..ef23e19 100644
--- a/README.md
+++ b/README.md
@@ -2187,7 +2187,7 @@ ICMP 报文格式：
 #### 内部网关协议
 
 * RIP（Routing Information Protocol，路由信息协议）
-* OSPF（Open Sortest Path First，开放最短路径优先）
+* OSPF（Open Shortest Path First，开放最短路径优先）
 
 #### 外部网关协议
 
diff --git a/README_en.md b/README_en.md
index 2811dc2..623890e 100644
--- a/README_en.md
+++ b/README_en.md
@@ -2186,7 +2186,7 @@ application:
 #### Interior Gateway Protocol
 
 * RIP (Routing Information Protocol, Routing Information Protocol)
-* OSPF (Open Sortest Path First)
+* OSPF (Open Shortest Path First)
 
 #### External gateway protocol