diff --git a/hosts/common/services.nix b/hosts/common/services.nix
index 230288b..0353a88 100644
--- a/hosts/common/services.nix
+++ b/hosts/common/services.nix
@@ -45,6 +45,12 @@
   programs.gnupg.agent = {
     enable = true;
     enableSSHSupport = true;
+    settings = {
+      max-cache-ttl = 60480000;
+      default-cache-ttl = 60480000;
+      default-cache-ttl-ssh = 60480000;
+      max-cache-ttl-ssl = 60480000;
+    };
   };
 
   # This setups a SSH server. Very important if you're setting up a headless system.