diff --git a/infrastructure/vpa/certificate.yaml b/infrastructure/vpa/certificate.yaml
index 570f0d8e66c086917712a8ff8ca6c6862d999cd7..74d60f58583f7ba67202be703335d1a1a1ef4dee 100644
--- a/infrastructure/vpa/certificate.yaml
+++ b/infrastructure/vpa/certificate.yaml
@@ -9,7 +9,6 @@ spec:
   privateKey:
     algorithm: ECDSA
     size: 256
-    encoding: PKCS1
   usages:
     - server auth
   dnsNames: