diff --git a/curl_cffi/requests/session.py b/curl_cffi/requests/session.py
index 112fbd8e..705b67e6 100644
--- a/curl_cffi/requests/session.py
+++ b/curl_cffi/requests/session.py
@@ -281,7 +281,10 @@ def _set_curl_options(
         c = curl
 
         # method
-        c.setopt(CurlOpt.CUSTOMREQUEST, method.encode())
+        if method == "POST":
+            c.setopt(CurlOpt.POST, 1)
+        elif method != "GET":
+            c.setopt(CurlOpt.CUSTOMREQUEST, method.encode())
 
         # url
         if self.params: