diff --git a/quicktype-plugin/build.gradle b/quicktype-plugin/build.gradle
index b327d8da..45bf74c9 100644
--- a/quicktype-plugin/build.gradle
+++ b/quicktype-plugin/build.gradle
@@ -17,7 +17,7 @@ dependencies {
 
     testImplementation project(":test-common")
     testImplementation "org.jetbrains.kotlin:kotlin-test"
-    testImplementation "org.mockito.kotlin:mockito-kotlin:4.1.0"
+    testImplementation "org.mockito.kotlin:mockito-kotlin:5.0.0"
     testImplementation "com.natpryce:hamkrest:1.8.0.1"
 }