diff --git a/build.gradle b/build.gradle
index da51d2d..4aac899 100644
--- a/build.gradle
+++ b/build.gradle
@@ -43,6 +43,7 @@ subprojects {
 
         testImplementation platform('org.junit:junit-bom:5.10.0')
         testImplementation 'org.junit.jupiter:junit-jupiter'
+        testImplementation 'org.mockito:mockito-core:5.14.2'
     }
 
     test {