diff --git a/binding/java/README.md b/binding/java/README.md
index ab71e47..9f9f764 100644
--- a/binding/java/README.md
+++ b/binding/java/README.md
@@ -7,7 +7,7 @@
 <dependency>
     <groupId>org.lionsoul</groupId>
     <artifactId>ip2region</artifactId>
-    <version>3.3.3</version>
+    <version>3.3.4</version>
 </dependency>
 ```
 
diff --git a/binding/java/pom.xml b/binding/java/pom.xml
index 7b99943..aa8363f 100644
--- a/binding/java/pom.xml
+++ b/binding/java/pom.xml
@@ -4,7 +4,7 @@
 
     <groupId>org.lionsoul</groupId>
     <artifactId>ip2region</artifactId>
-    <version>3.3.3</version>
+    <version>3.3.4</version>
     <packaging>jar</packaging>
 
     <name>ip2region</name>