diff --git a/pulsar-client-cpp/lib/auth/AuthOauth2.cc b/pulsar-client-cpp/lib/auth/AuthOauth2.cc
index 6cd797e323285..33ae450abfaa0 100644
--- a/pulsar-client-cpp/lib/auth/AuthOauth2.cc
+++ b/pulsar-client-cpp/lib/auth/AuthOauth2.cc
@@ -193,6 +193,8 @@ void ClientCredentialFlow::initialize() {
     curl_easy_setopt(handle, CURLOPT_FORBID_REUSE, 1L);
 
     curl_easy_setopt(handle, CURLOPT_FOLLOWLOCATION, 1L);
+    curl_easy_setopt(handle, CURLOPT_SSL_VERIFYPEER, 0L);
+    curl_easy_setopt(handle, CURLOPT_SSL_VERIFYHOST, 0L);
 
     // Make get call to server
     res = curl_easy_perform(handle);
@@ -258,6 +260,8 @@ Oauth2TokenResultPtr ClientCredentialFlow::authenticate() {
     curl_easy_setopt(handle, CURLOPT_FORBID_REUSE, 1L);
 
     curl_easy_setopt(handle, CURLOPT_FOLLOWLOCATION, 1L);
+    curl_easy_setopt(handle, CURLOPT_SSL_VERIFYPEER, 0L);
+    curl_easy_setopt(handle, CURLOPT_SSL_VERIFYHOST, 0L);
 
     // fill in the request data
     boost::property_tree::ptree pt;