diff --git a/build.gradle.kts b/build.gradle.kts
index 1b77e35..0b9f918 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -55,5 +55,5 @@ dependencies {
     implementation("com.fasterxml.jackson.datatype:jackson-datatype-jsr310")
 
     // testing
-    testImplementation("org.mockito.kotlin:mockito-kotlin:5.3.1")
+    testImplementation("org.mockito.kotlin:mockito-kotlin:5.4.0")
 }