diff --git a/host-radon.yml b/host-radon.yml
index cc115e3..f531342 100644
--- a/host-radon.yml
+++ b/host-radon.yml
@@ -7,7 +7,7 @@
 
     data_dir: "/srv/data"
 
-    mosquitto_image: eclipse-mosquitto:2.0.19
+    mosquitto_image: eclipse-mosquitto:2.0.20
     mosquitto_data: "{{ data_dir }}/mosquitto"
 
     nodered_image: nodered/node-red:3.0.1-1-18