diff --git a/mkdocs.yml b/mkdocs.yml
index 4c2a4670..c18d0638 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -83,7 +83,7 @@ plugins:
             数学进阶: Advanced Mathematics
             编程入门: Fundamental Programming
             Python 语言: Python Language
-            Java 语言：Java Language
+            Java 语言: Java Language
             C 语言: C Language
             C++ 语言: C++ Language
             Rust 语言: Rust Language
@@ -175,7 +175,7 @@ nav:
         - "AmirKabir University of Technology AP1400-2: Advanced Programming": "编程入门/cpp/AUT1400.md"
         - "Stanford CS106L: Standard C++ Programming": "编程入门/cpp/CS106L.md"
         - "Stanford CS106B/X": "编程入门/cpp/CS106B_CS106X.md"
-      - Java 语言：
+      - Java 语言:
         - "MIT 6.092: Introduction To Programming In Java": "编程入门/Java/MIT 6.092.md"
       - Rust 语言:
         - "Stanford CS110L: Safety in Systems Programming": "编程入门/Rust/CS110L.md"