diff --git a/build.gradle b/build.gradle
index 38395c7..45f48cc 100644
--- a/build.gradle
+++ b/build.gradle
@@ -17,7 +17,7 @@ dependencies {
     testRuntimeOnly 'org.junit.platform:junit-platform-launcher:6.0.1'
 
     // https://mvnrepository.com/artifact/org.mockito/mockito-core
-    testImplementation 'org.mockito:mockito-core:5.20.0'
+    testImplementation 'org.mockito:mockito-core:5.21.0'
 }