diff --git a/modules/home-manager/thunderbird.nix b/modules/home-manager/thunderbird.nix
index caad0d2..acb8f4a 100644
--- a/modules/home-manager/thunderbird.nix
+++ b/modules/home-manager/thunderbird.nix
@@ -77,7 +77,7 @@
       realName = "Max Känner";
       imap = {
         host = "gym-stolz.de";
-        port = 993;
+        port = 143;
         tls = {
           enable = true;
           useStartTls = true;