diff --git a/gradle.properties b/gradle.properties
index 6f5c33309..00397da80 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -15,7 +15,7 @@ jasigWidgetPortletVersion=2.4.0
 newsReaderPortletVersion=5.1.0
 notificationPortletVersion=4.8.0
 # Required for very old front-end dependencies
-resourceServerVersion=1.0.48
+resourceServerVersion=1.5.0
 # Includes newer front-end dependencies and web components
 resourceServerWebjarVersion=1.5.0
 simpleContentPortletVersion=3.4.0