diff --git a/serializer/pom.xml b/serializer/pom.xml
index c63f2a1..17f90fd 100644
--- a/serializer/pom.xml
+++ b/serializer/pom.xml
@@ -85,7 +85,7 @@
         <dependency>
             <groupId>org.mockito</groupId>
             <artifactId>mockito-core</artifactId>
-            <version>3.12.4</version>
+            <version>5.21.0</version>
             <scope>test</scope>
         </dependency>
     </dependencies>