diff --git a/arch/arch_config_schema.yaml b/arch/arch_config_schema.yaml
index 0d91d41b..7929a7a1 100644
--- a/arch/arch_config_schema.yaml
+++ b/arch/arch_config_schema.yaml
@@ -56,7 +56,7 @@ properties:
         properties:
           endpoint:
             type: string
-            pattern: "^[a-zA-Z].*$"
+            pattern: "^.*$"
           connect_timeout:
             type: string
           protocol: