diff --git a/zero-bounce-sdk/pom.xml b/zero-bounce-sdk/pom.xml
index e387f2a..fe4b71c 100644
--- a/zero-bounce-sdk/pom.xml
+++ b/zero-bounce-sdk/pom.xml
@@ -40,7 +40,7 @@
         <maven.compiler.target>21</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-        <mockito.version>5.20.0</mockito.version>
+        <mockito.version>5.21.0</mockito.version>
     </properties>
 
     <dependencies>