diff --git a/src/main/resources/shynet/certificate.yaml b/src/main/resources/shynet/certificate.yaml
index 93e7336..48a2e56 100644
--- a/src/main/resources/shynet/certificate.yaml
+++ b/src/main/resources/shynet/certificate.yaml
@@ -6,6 +6,8 @@ metadata:
 spec:
   secretName: shynet-secret
   commonName: fqdn
+  duration: 2160h # 90d
+  renewBefore: 360h # 15d
   dnsNames:
   - fqdn
   issuerRef: