diff --git a/default.nix b/default.nix
index 07bfa2be..b6d0acb5 100644
--- a/default.nix
+++ b/default.nix
@@ -141,6 +141,8 @@
     settings = {
       allow-emacs-pinentry = "";
       allow-loopback-pinentry = "";
+      default-cache-ttl = "28800";
+      max-cache-ttl = "28800";
     };
     # enableSSHSupport = true;
   };