diff --git a/roles/common/configuration.nix b/roles/common/configuration.nix
index f891145..4cbf013 100755
--- a/roles/common/configuration.nix
+++ b/roles/common/configuration.nix
@@ -45,6 +45,23 @@
 
   boot.supportedFilesystems = ["nfs"];
 
+  security.pki.certificates = [
+    # Caddy
+    ''
+      -----BEGIN CERTIFICATE-----
+      MIIBqTCCAU+gAwIBAgIQceh0ZUBNrOmqLVsDr+2HBjAKBggqhkjOPQQDAjAzMTEw
+      LwYDVQQDEyhDYWRkeSAoRXZlcmVzdCkgbG9jYWwgQ0EgLSAyMDI0IEVDQyBSb290
+      MB4XDTI0MDcxODAwMDEwM1oXDTM0MDUyNzAwMDEwM1owMzExMC8GA1UEAxMoQ2Fk
+      ZHkgKEV2ZXJlc3QpIGxvY2FsIENBIC0gMjAyNCBFQ0MgUm9vdDBZMBMGByqGSM49
+      AgEGCCqGSM49AwEHA0IABJjrY8x6iDXncxG8exwLyaEq8N0XnCIbga8PVYiz3VLS
+      07++i0Dey9k68ag6KUZICfc8dX1uZ6/ozUZb4YO3xCSjRTBDMA4GA1UdDwEB/wQE
+      AwIBBjASBgNVHRMBAf8ECDAGAQH/AgEBMB0GA1UdDgQWBBTQAqZS9KeiAr9mSPV9
+      RIJbSvRsTzAKBggqhkjOPQQDAgNIADBFAiBIgHrD2cUfNEctVx0WzHb0cLAsrK4Q
+      3QbyxPLyenR+dAIhAMOIAyxlKKKvAJMOzAg0r+csSVRdP1YHsHiE7U1GeHWx
+      -----END CERTIFICATE-----
+    ''
+  ];
+
   # Set up localisation
   i18n = {
     defaultLocale = "en_US.UTF-8";