diff --git a/mos.yml b/mos.yml
index 34292c8..34cb32e 100644
--- a/mos.yml
+++ b/mos.yml
@@ -13,6 +13,7 @@ filesystem:
 
 libs:
     # common mgos libs
+  - origin: https://github.com/mongoose-os-libs/ca-bundle
   - origin: https://github.com/mongoose-os-libs/http-server
   - origin: https://github.com/mongoose-os-libs/i2c
   - origin: https://github.com/mongoose-os-libs/rpc-service-config