diff --git a/class/core/cert_api.py b/class/core/cert_api.py
index 1f8f008fd..6c9e40205 100644
--- a/class/core/cert_api.py
+++ b/class/core/cert_api.py
@@ -930,7 +930,8 @@ fi
                 index).encode()
         )
         X509Req.set_pubkey(pk)
-        X509Req.set_version(2)
+        # X509Req.set_version(2)
+        X509Req.set_version(0)
         X509Req.sign(pk, self.__digest)
         return OpenSSL.crypto.dump_certificate_request(OpenSSL.crypto.FILETYPE_ASN1, X509Req)
 
diff --git a/class/core/cert_request.py b/class/core/cert_request.py
index da46e271c..9da8ace5f 100644
--- a/class/core/cert_request.py
+++ b/class/core/cert_request.py
@@ -840,7 +840,8 @@ class cert_request:
                 index).encode()
         )
         X509Req.set_pubkey(pk)
-        X509Req.set_version(2)
+        # X509Req.set_version(2)
+        X509Req.set_version(0)
         X509Req.sign(pk, self.__digest)
         return OpenSSL.crypto.dump_certificate_request(OpenSSL.crypto.FILETYPE_ASN1, X509Req)