diff --git a/pom.xml b/pom.xml
index b967693..59df320 100644
--- a/pom.xml
+++ b/pom.xml
@@ -60,7 +60,7 @@
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>fastjson</artifactId>
-            <version>${fastjson.version}</version>
+            <version>2.1.0.RELEASE</version>
         </dependency>
 
         <dependency>
@@ -71,13 +71,13 @@
         <dependency>
             <groupId>commons-io</groupId>
             <artifactId>commons-io</artifactId>
-            <version>${commons.io.version}</version>
+            <version>2.14.0</version>
         </dependency>
 
         <dependency>
             <groupId>org.mybatis.spring.boot</groupId>
             <artifactId>mybatis-spring-boot-starter</artifactId>
-            <version>${mybatis-spring-boot.version}</version>
+            <version>1.3.2</version>
         </dependency>
         <dependency>
             <groupId>com.h2database</groupId>
@@ -86,7 +86,7 @@
         <dependency>
             <groupId>org.projectlombok</groupId>
             <artifactId>lombok</artifactId>
-            <version>${lombok_version}</version>
+            <version>1.18.0</version>
             <scope>compile</scope>
         </dependency>