diff --git a/google-cloud-nio/pom.xml b/google-cloud-nio/pom.xml
index cc0cc484..de6a6721 100644
--- a/google-cloud-nio/pom.xml
+++ b/google-cloud-nio/pom.xml
@@ -98,7 +98,7 @@
     <dependency>
       <groupId>org.mockito</groupId>
       <artifactId>mockito-core</artifactId>
-      <version>3.2.4</version>
+      <version>3.3.3</version>
       <scope>test</scope>
     </dependency><dependency>
       <groupId>org.hamcrest</groupId>