diff --git a/nspanel-lovelace-ui/config.yaml b/nspanel-lovelace-ui/config.yaml
index 0de44156..15e045f9 100644
--- a/nspanel-lovelace-ui/config.yaml
+++ b/nspanel-lovelace-ui/config.yaml
@@ -1,6 +1,6 @@
 # https://developers.home-assistant.io/docs/add-ons/configuration#add-on-config
 name: NSPanel Lovelace UI Addon
-version: "4.7.67"
+version: "4.7.68"
 slug: nspanel-lovelace-ui
 description: NSPanel Lovelace UI Addon
 services:
diff --git a/nspanel-lovelace-ui/rootfs/usr/bin/mqtt-manager/main.py b/nspanel-lovelace-ui/rootfs/usr/bin/mqtt-manager/main.py
index 602eb68c..2ff25a9c 100644
--- a/nspanel-lovelace-ui/rootfs/usr/bin/mqtt-manager/main.py
+++ b/nspanel-lovelace-ui/rootfs/usr/bin/mqtt-manager/main.py
@@ -191,7 +191,7 @@ if __name__ == '__main__':
 
         # main thread sleep forever
         while True:
-            sleep(100)
+            time.sleep(100)
     else:
         while True:
           time.sleep(100)
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