diff --git a/Internal/CurlClientState.php b/Internal/CurlClientState.php
index 5821f67..904cc47 100644
--- a/Internal/CurlClientState.php
+++ b/Internal/CurlClientState.php
@@ -96,7 +96,7 @@ public function reset()
         curl_share_setopt($this->share, \CURLSHOPT_SHARE, \CURL_LOCK_DATA_DNS);
         curl_share_setopt($this->share, \CURLSHOPT_SHARE, \CURL_LOCK_DATA_SSL_SESSION);
 
-        if (\defined('CURL_LOCK_DATA_CONNECT')) {
+        if (\defined('CURL_LOCK_DATA_CONNECT') && \PHP_VERSION_ID >= 80000) {
             curl_share_setopt($this->share, \CURLSHOPT_SHARE, \CURL_LOCK_DATA_CONNECT);
         }
     }