diff --git a/features/newts-repository-converter/src/test/resources/opennms-home/etc/opennms.properties b/features/newts-repository-converter/src/test/resources/opennms-home/etc/opennms.properties
index 2e6c8cb5a268..0857d31e05ee 100644
--- a/features/newts-repository-converter/src/test/resources/opennms-home/etc/opennms.properties
+++ b/features/newts-repository-converter/src/test/resources/opennms-home/etc/opennms.properties
@@ -6,4 +6,5 @@ org.opennms.newts.config.keyspace=newts
 org.opennms.newts.config.port=9043
 org.opennms.newts.config.max_batch_size=16
 org.opennms.newts.config.max_batch_delay=0
-org.opennms.newts.config.ttl=315360000
+# another ten years before tests will fail, see NMS-16936
+org.opennms.newts.config.ttl=630720000