diff --git a/pom.xml b/pom.xml
index f50ffb7..af3cce9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -31,7 +31,7 @@
     </parent>
 
     <properties>
-        <elasticsearch.version>1.0.0</elasticsearch.version>
+        <elasticsearch.version>1.1.1</elasticsearch.version>
     </properties>
 
   <repositories>
diff --git a/src/main/java/org/wltea/analyzer/dic/Dictionary.java b/src/main/java/org/wltea/analyzer/dic/Dictionary.java
index 63b8b0a..2e0f33f 100644
--- a/src/main/java/org/wltea/analyzer/dic/Dictionary.java
+++ b/src/main/java/org/wltea/analyzer/dic/Dictionary.java
@@ -80,7 +80,7 @@ public class Dictionary {
 	 * 该方法提供了一个在应用加载阶段就初始化字典的手段
 	 * @return Dictionary
 	 */
-	public static Dictionary initial(Configuration cfg){
+	public static synchronized Dictionary initial(Configuration cfg){
 		if(singleton == null){
 			synchronized(Dictionary.class){
 				if(singleton == null){
diff --git a/src/main/resources/es-plugin.properties b/src/main/resources/es-plugin.properties
index fdb2222..edd0d41 100644
--- a/src/main/resources/es-plugin.properties
+++ b/src/main/resources/es-plugin.properties
@@ -1 +1,2 @@
-plugin=org.elasticsearch.plugin.analysis.ik.AnalysisIkPlugin
\ No newline at end of file
+plugin=org.elasticsearch.plugin.analysis.ik.AnalysisIkPlugin
+version=${project.version}
\ No newline at end of file