diff --git a/micropip/install.py b/micropip/install.py
index 4183c86..c36c91b 100644
--- a/micropip/install.py
+++ b/micropip/install.py
@@ -20,6 +20,7 @@ async def install(
     index_urls: list[str] | str | None = None,
     *,
     verbose: bool | int = False,
+    **fetch_kwargs,
 ) -> None:
     """Install the given package and all of its dependencies.
 
@@ -114,8 +115,6 @@ async def install(
     if isinstance(requirements, str):
         requirements = [requirements]
 
-    fetch_kwargs = dict()
-
     if credentials:
         fetch_kwargs["credentials"] = credentials