diff --git a/spi/build.gradle b/spi/build.gradle
index 633ec703..3cd41c71 100644
--- a/spi/build.gradle
+++ b/spi/build.gradle
@@ -66,7 +66,7 @@ check.dependsOn jacocoTestReport
 
 dependencies {
     compileOnly "org.opensearch:opensearch:${opensearch_version}"
-    compile "com.cronutils:cron-utils:9.1.3"
+    compile "com.cronutils:cron-utils:9.1.6"
 
     testImplementation "org.opensearch.test:framework:${opensearch_version}"
     testImplementation "org.apache.logging.log4j:log4j-core:${versions.log4j}"