Updated GoUsers (markdown)
diff --git a/GoUsers.md b/GoUsers.md
index 72a4d34..adc9b59 100644
--- a/GoUsers.md
+++ b/GoUsers.md
@@ -521,6 +521,8 @@
* [Nulab](https://nulab-inc.com/) - [github](https://github.com/nulab)
* [Bengo4.com,Inc.](https://corporate.bengo4.com/)
* [CloudSign](https://www.cloudsign.jp/)
+ * [HEARTBEATS](https://heartbeats.jp/)
+ * [happo-agent](https://github.com/heartbeatsjp/happo-agent) - Yet another Nagios nrpe
## Kazakhstan
* Kolesa LLC - microservices for classified ads websites and mobile applications backend ([Kolesa](http://kolesa.kz), [Krisha](https://krisha.kz), [Market](https://market.kz))
