diff --git a/build.gradle b/build.gradle
index b4986dec..5a03ad43 100644
--- a/build.gradle
+++ b/build.gradle
@@ -88,5 +88,5 @@ dependencies {
     compile group: 'org.apache.commons', name: 'commons-lang3', version: '3.11'
     testCompile group: 'junit', name: 'junit', version:'4.13.2'
     testCompile group: 'org.slf4j', name: 'slf4j-simple', version:'1.7.30'
-    testCompile group: 'org.mockito', name: 'mockito-core', version:'3.7.7'
+    testCompile group: 'org.mockito', name: 'mockito-core', version:'3.9.0'
 }