diff --git a/data-prepper-plugins/anomaly-detector-processor/build.gradle b/data-prepper-plugins/anomaly-detector-processor/build.gradle
index 76f5ae9513..8298f50767 100644
--- a/data-prepper-plugins/anomaly-detector-processor/build.gradle
+++ b/data-prepper-plugins/anomaly-detector-processor/build.gradle
@@ -13,7 +13,7 @@ dependencies {
     implementation project(':data-prepper-plugins:common')
     implementation 'com.fasterxml.jackson.core:jackson-databind'
     implementation 'io.micrometer:micrometer-core'
-    implementation 'software.amazon.randomcutforest:randomcutforest-testutils:3.8.0'
+    implementation 'software.amazon.randomcutforest:randomcutforest-testutils:4.2.0'
     implementation 'software.amazon.randomcutforest:randomcutforest-core:3.8.0'
     implementation 'software.amazon.randomcutforest:randomcutforest-examples:3.8.0'
     implementation 'software.amazon.randomcutforest:randomcutforest-parkservices:3.8.0'