diff --git a/.circleci/config.yml b/.circleci/config.yml
index f616bd3..198935f 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -20,7 +20,7 @@ version: 2.1
 executors:
   testbuild-executor:
     machine:
-      image: ubuntu-1604:201903-01
+      image: ubuntu-2004:202201-02
 jobs:
   test:
     executor: testbuild-executor
diff --git a/overlay/etc/nginx/sites-available/cache.conf.d/99_gnu.conf b/overlay/etc/nginx/sites-available/cache.conf.d/99_gnu.conf
new file mode 100644
index 0000000..5ebe78e
--- /dev/null
+++ b/overlay/etc/nginx/sites-available/cache.conf.d/99_gnu.conf
@@ -0,0 +1,4 @@
+#In loving memory of Zoey "Crabbey" Lough. May she live on in the code
+
+add_header X-Clacks-Overhead "GNU Terry Pratchett, GNU Zoey -Crabbey- Lough";
+proxy_set_header X-Clacks-Overhead "GNU Terry Pratchett, GNU Zoey -Crabbey- Lough";