diff --git a/Course/ReleaseLibraryByJitPack.md b/Course/ReleaseLibraryByJitPack.md
index 5af4595..db62d5c 100644
--- a/Course/ReleaseLibraryByJitPack.md
+++ b/Course/ReleaseLibraryByJitPack.md
@@ -42,7 +42,7 @@ jCenter       | jCenter貌似稍微简单一点，但也不是省油的灯。
 
 # 如何在JitPack上发布你的Library
 
-**首先，假设大家有已经具备了以下条件：**
+**首先，假设大家已经具备了以下条件：**
 
 序号 | 条件
 :---:|---------