diff --git a/upip/metadata.txt b/upip/metadata.txt
index aed8ef35..f26dfa9c 100644
--- a/upip/metadata.txt
+++ b/upip/metadata.txt
@@ -1,6 +1,6 @@
 srctype = micropython-lib
 type = module
-version = 0.6.2
+version = 0.6.3
 author = Paul Sokolovsky
 extra_modules = upip_errno, upip_gzip, upip_utarfile
 desc = Simple package manager for MicroPython.
diff --git a/upip/setup.py b/upip/setup.py
index 692fef93..5cc511ad 100644
--- a/upip/setup.py
+++ b/upip/setup.py
@@ -6,7 +6,7 @@ from setuptools import setup
 
 
 setup(name='micropython-upip',
-      version='0.6.2',
+      version='0.6.3',
       description='Simple package manager for MicroPython.',
       long_description='Simple package manager for MicroPython, targetting to be self-hosted (but not yet there). Compatible only with packages without custom setup.py code.',
       url='https://github.com/micropython/micropython/issues/405',
diff --git a/upip/upip.py b/upip/upip.py
index 2c612826..666b2a1d 100644
--- a/upip/upip.py
+++ b/upip/upip.py
@@ -11,7 +11,7 @@ def upip_import(mod, sub=None):
         return m
 
 sys = upip_import("sys")
-import _os as os
+import uos as os
 
 errno = upip_import("errno")
 gzip = upip_import("gzip")