diff --git a/build.gradle b/build.gradle
index e4568f35b..f9c5b02d5 100644
--- a/build.gradle
+++ b/build.gradle
@@ -47,7 +47,7 @@ dependencies {
     compileOnly 'com.google.appengine:appengine-api-1.0-sdk:1.9.38'
 
     testImplementation 'org.testng:testng:6.9.10'
-    testImplementation 'org.mockito:mockito-core:1.10.19'
+    testImplementation 'org.mockito:mockito-core:5.1.0'
     testImplementation 'org.openjdk.jmh:jmh-core:1.12'
     testImplementation 'org.openjdk.jmh:jmh-generator-annprocess:1.35'
     testImplementation 'com.google.appengine:appengine-api-1.0-sdk:1.9.38'