diff --git a/common/pom.xml b/common/pom.xml
index 2e8fe5ff6..1bc48967a 100644
--- a/common/pom.xml
+++ b/common/pom.xml
@@ -250,10 +250,6 @@
             <artifactId>hanlp</artifactId>
             <version>${hanlp.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.apache.commons</groupId>
-            <artifactId>commons-lang3</artifactId>
-        </dependency>
 
         <dependency>
             <groupId>org.springframework.boot</groupId>
diff --git a/pom.xml b/pom.xml
index d74014b12..a75cebc72 100644
--- a/pom.xml
+++ b/pom.xml
@@ -26,7 +26,7 @@
     </parent>
 
     <properties>
-        <revision>0.9.2-SNAPSHOT</revision>
+        <revision>0.9.4</revision>
         <java.source.version>1.8</java.source.version>
         <java.target.version>1.8</java.target.version>
         <maven.compiler.source>8</maven.compiler.source>