diff --git a/pom.xml b/pom.xml
index dd2d81a..37cd0de 100644
--- a/pom.xml
+++ b/pom.xml
@@ -62,7 +62,7 @@
 		<dependency>
 			<groupId>com.alibaba</groupId>
 			<artifactId>fastjson</artifactId>
-			<version>1.2.31</version>
+			<version>1.4.2.RELEASE</version>
 		</dependency>
 		<!-- lombok -->
 		<dependency>
@@ -73,7 +73,7 @@
 		<dependency>
 			<groupId>com.google.guava</groupId>
 			<artifactId>guava</artifactId>
-			<version>19.0</version>
+			<version>1.16.10</version>
 		</dependency>
 		<dependency>
 			<groupId>commons-logging</groupId>
@@ -102,23 +102,23 @@
 		<dependency>
 			<groupId>org.bouncycastle</groupId>
 			<artifactId>bcprov-jdk15on</artifactId>
-			<version>${bcprov.version}</version>
+			<version>4.5.2</version>
 		</dependency>
 
 		<dependency>
 			<groupId>io.springfox</groupId>
 			<artifactId>springfox-swagger2</artifactId>
-			<version>${swagger2.version}</version>
+			<version>2.2.2</version>
 		</dependency>
 		<dependency>
 			<groupId>io.springfox</groupId>
 			<artifactId>springfox-swagger-ui</artifactId>
-			<version>${swagger2.version}</version>
+			<version>2.2.2</version>
 		</dependency>
 		<dependency>
 			<groupId>org.jsoup</groupId>
 			<artifactId>jsoup</artifactId>
-			<version>${jsoup.version}</version>
+			<version>1.8.3</version>
 		</dependency>
 		<dependency>
 			<groupId>org.springframework.boot</groupId>