diff --git a/src/browserbase/resources/sessions/sessions.py b/src/browserbase/resources/sessions/sessions.py
index e05a0de..15d8e70 100644
--- a/src/browserbase/resources/sessions/sessions.py
+++ b/src/browserbase/resources/sessions/sessions.py
@@ -155,7 +155,7 @@ def create(
                     "keep_alive": keep_alive,
                     "proxies": proxies,
                     "region": region,
-                    "timeout": api_timeout,
+                    "api_timeout": api_timeout,
                 },
                 session_create_params.SessionCreateParams,
             ),
@@ -409,7 +409,7 @@ async def create(
                     "keep_alive": keep_alive,
                     "proxies": proxies,
                     "region": region,
-                    "timeout": api_timeout,
+                    "api_timeout": api_timeout,
                 },
                 session_create_params.SessionCreateParams,
             ),