diff --git a/webmagic-samples/pom.xml b/webmagic-samples/pom.xml
index 08e70c16..906606fb 100644
--- a/webmagic-samples/pom.xml
+++ b/webmagic-samples/pom.xml
@@ -27,7 +27,7 @@
         <dependency>
             <groupId>org.mapdb</groupId>
             <artifactId>mapdb</artifactId>
-            <version>3.0.10</version>
+            <version>3.1.0</version>
         </dependency>
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>