diff --git a/SUMMARY.md b/SUMMARY.md
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@@ -18,7 +18,8 @@
 * [第四章 Spark图数据计算与分析实战](/chapter4/4Spark图数据计算简介.md)
   * [4.1 SparkGraphX计算生成最短路径](/chapter4/4.1SparkGraphX计算生成最短路径.md)
 * [第五章 Spark机器学习实战](/chapter5/5Spark机器学习实战简介.md)
-  * [5.1 Spark机器学习](/chapter5/5.1Spark机器学习实战.md)
+  * [5.1 Spark机器学习](/chapter5/5.1Spark机器学习入门.md)
+  * [5.2 Spark机器学习](/chapter5/5.2Spark机器学习实战.md)
 
 
 
diff --git a/chapter5/5.1Spark机器学习入门.md b/chapter5/5.1Spark机器学习入门.md
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diff --git a/chapter5/5.1Spark机器学习实战.md b/chapter5/5.2Spark机器学习实战.md
similarity index 100%
rename from chapter5/5.1Spark机器学习实战.md
rename to chapter5/5.2Spark机器学习实战.md