diff --git a/services/wch-app.nix b/services/wch-app.nix
index b62d828..687c942 100644
--- a/services/wch-app.nix
+++ b/services/wch-app.nix
@@ -1,10 +1,11 @@
 {pkgs, ...}: import ../common/services/wch-app.nix {
   pkgs = pkgs;
   ref = "feature/client-auth";
-  rev = "1d43ffd995989eda217612daed5c180a68070352";
+  rev = "c42e3faafe164cb16bfb878067af24dbf75a9fba";
   baseUrl = "wch-otd-test.techwork.zone";
   mail = {
     host = "in-v3.mailjet.com";
     from = "wch-otd@tams.tech";
+    port = "587";
   };
 }