diff --git a/bundles/letsencrypt/files/letsencrypt-ensure-some-certificate b/bundles/letsencrypt/files/letsencrypt-ensure-some-certificate
index e0248cb..f9b961d 100644
--- a/bundles/letsencrypt/files/letsencrypt-ensure-some-certificate
+++ b/bundles/letsencrypt/files/letsencrypt-ensure-some-certificate
@@ -25,7 +25,7 @@ if [ "$already_exists" != true ]
 then
     rm -r "$cert_path"
     mkdir -p "$cert_path"
-    openssl req -x509 -newkey rsa:4096 -nodes -days 3650 -subj "/CN=$domain" -keyout "$cert_path/privkey.pem" -out "$cert_path/fullchain.pem"
+    openssl req -x509 -newkey rsa:4096 -nodes -days 1 -subj "/CN=$domain" -keyout "$cert_path/privkey.pem" -out "$cert_path/fullchain.pem"
     chmod 0600 "$cert_path/privkey.pem"
     cp "$cert_path/fullchain.pem" "$cert_path/chain.pem"
 fi