diff --git a/cameleer-server-app/src/main/resources/db/migration/V11__outbound_connections.sql b/cameleer-server-app/src/main/resources/db/migration/V11__outbound_connections.sql
index 102695f9..aa9576b1 100644
--- a/cameleer-server-app/src/main/resources/db/migration/V11__outbound_connections.sql
+++ b/cameleer-server-app/src/main/resources/db/migration/V11__outbound_connections.sql
@@ -10,7 +10,7 @@ CREATE TABLE outbound_connections (
   tenant_id                 varchar(64) NOT NULL,
   name                      varchar(100) NOT NULL,
   description               text,
-  url                       text NOT NULL,
+  url                       text NOT NULL CHECK (url ~ '^https://'),
   method                    outbound_method_enum NOT NULL,
   default_headers           jsonb NOT NULL DEFAULT '{}',
   default_body_tmpl         text,