diff --git a/build.gradle b/build.gradle
index 899486e2..d0d7c9f6 100644
--- a/build.gradle
+++ b/build.gradle
@@ -17,7 +17,7 @@ ext {
             gson: 'com.google.code.gson:gson:2.3.1',
             jettison: 'org.codehaus.jettison:jettison:1.3.7',
             jsonOrg: 'org.json:json:20140107',
-            tapestryJson: 'org.apache.tapestry:tapestry-json:5.4.1',
+            tapestryJson: 'org.apache.tapestry:tapestry-json:5.4.2',
             hamcrestCore: 'org.hamcrest:hamcrest-core:1.3',
             hamcrestLibrary: 'org.hamcrest:hamcrest-library:1.3',