diff --git a/examples/unleash-advanced/pom.xml b/examples/unleash-advanced/pom.xml
index 34ab9f4..1e3f0f0 100644
--- a/examples/unleash-advanced/pom.xml
+++ b/examples/unleash-advanced/pom.xml
@@ -51,7 +51,7 @@
         <dependency>
             <groupId>com.squareup.okhttp3</groupId>
             <artifactId>mockwebserver</artifactId>
-            <version>4.12.0</version>
+            <version>5.2.1</version>
         </dependency>
     </dependencies>
 
diff --git a/pom.xml b/pom.xml
index 354a084..47736e1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -91,7 +91,7 @@
         <unleash.version>0.1.0-alpha</unleash.version>
         <unleash-client-java.version>10.2.2</unleash-client-java.version>
 
-        <mockwebserver.version>4.12.0</mockwebserver.version>
+        <mockwebserver.version>5.2.1</mockwebserver.version>
     </properties>
 
     <build>