diff --git a/build.gradle b/build.gradle
index cfd66077..8a7b3371 100644
--- a/build.gradle
+++ b/build.gradle
@@ -162,7 +162,7 @@ dependencies {
     implementation "org.opensearch.client:opensearch-rest-high-level-client:$openSearchVersion"
 
     testImplementation "org.junit.jupiter:junit-jupiter:5.10.0"
-    testImplementation "org.mockito:mockito-core:5.4.0"
+    testImplementation "org.mockito:mockito-core:5.5.0"
     testImplementation "org.mockito:mockito-inline:5.2.0"
     testImplementation "org.mockito:mockito-junit-jupiter:5.4.0"