diff --git a/sharding-jdbc-config-parent/sharding-jdbc-config-yaml/src/main/java/com/dangdang/ddframe/rdb/sharding/config/yaml/api/YamlShardingDataSource.java b/sharding-jdbc-config-parent/sharding-jdbc-config-yaml/src/main/java/com/dangdang/ddframe/rdb/sharding/config/yaml/api/YamlShardingDataSource.java
index 7a27610f69b562c43c8a4d07bcb53da672653efa..e79045a10030eef712703717ecdfe430d111ee31 100644
--- a/sharding-jdbc-config-parent/sharding-jdbc-config-yaml/src/main/java/com/dangdang/ddframe/rdb/sharding/config/yaml/api/YamlShardingDataSource.java
+++ b/sharding-jdbc-config-parent/sharding-jdbc-config-yaml/src/main/java/com/dangdang/ddframe/rdb/sharding/config/yaml/api/YamlShardingDataSource.java
@@ -46,6 +46,11 @@ public class YamlShardingDataSource extends ShardingDataSource {
     }
     
     private static YamlConfig unmarshal(final File yamlFile) throws IOException {
-        return new Yaml(new Constructor(YamlConfig.class)).loadAs(new InputStreamReader(new FileInputStream(yamlFile), "UTF-8"), YamlConfig.class);
+        try (
+                FileInputStream fileInputStream = new FileInputStream(yamlFile);
+                InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream, "UTF-8")
+            ) {
+            return new Yaml(new Constructor(YamlConfig.class)).loadAs(inputStreamReader, YamlConfig.class);
+        }
     }
 }
diff --git a/sharding-jdbc-doc/content/post/release_notes.md b/sharding-jdbc-doc/content/post/release_notes.md
index f560275052828c688f903c1750b6a0094556c6b5..571bbf0afdf8a9f99e5fbc90b9e9be7775bd1468 100644
--- a/sharding-jdbc-doc/content/post/release_notes.md
+++ b/sharding-jdbc-doc/content/post/release_notes.md
@@ -6,11 +6,12 @@ weight = 1
 
 # Release Notes
 
-## 1.1.0-SNAPSHOT
+## 1.1.1-SNAPSHOT
 
 ### 缺陷修正:
 
 1. [ISSUE #43](https://github.com/dangdangdotcom/sharding-jdbc/issues/43) yaml文件中包含中文，且操作系统模式不是utf-8编码导致的yaml不能解析
+1. [ISSUE #48](https://github.com/dangdangdotcom/sharding-jdbc/issues/48) yaml文件读取后未关闭
 
 ## 1.1.0