diff --git a/pom.xml b/pom.xml
index abb7d2cd33..850e8561d6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -128,7 +128,7 @@
         <version.ecs.logging>1.6.0</version.ecs.logging>
         <version.spring>5.0.15.RELEASE</version.spring>
         <version.jetty-server>9.4.11.v20180605</version.jetty-server>
-        <version.json-schema-validator>1.5.5</version.json-schema-validator>
+        <version.json-schema-validator>1.5.6</version.json-schema-validator>
         <!-- Byte Buddy and ASM must be kept in sync -->
         <version.byte-buddy>1.17.4</version.byte-buddy>
         <version.asm>9.7.1</version.asm>