diff --git a/build.gradle b/build.gradle
index a4a705e..04db1e6 100644
--- a/build.gradle
+++ b/build.gradle
@@ -19,7 +19,7 @@ dependencies {
     implementation 'com.nexmo:client:5.6.0'
     implementation "com.sparkjava:spark-core:2.6.0"
     implementation 'javax.xml.bind:jaxb-api:2.3.0'
-    implementation 'com.fasterxml.jackson.core:jackson-databind:2.9.9'
+    implementation 'com.fasterxml.jackson.core:jackson-databind:2.12.7.1'
 }
 
 task fatJar(type: Jar, dependsOn:configurations.runtimeClasspath) {