diff --git a/hgext/lfs/wrapper.py b/hgext/lfs/wrapper.py
--- a/hgext/lfs/wrapper.py
+++ b/hgext/lfs/wrapper.py
@@ -10,11 +10,12 @@
 import hashlib
 
 from mercurial.i18n import _
-from mercurial.node import bin, nullid, short
+from mercurial.node import bin, hex, nullid, short
 
 from mercurial import (
     error,
     filelog,
+    pycompat,
     revlog,
     util,
 )
@@ -85,7 +86,7 @@
         text = text[offset:]
 
     # git-lfs only supports sha256
-    oid = hashlib.sha256(text).hexdigest()
+    oid = hex(hashlib.sha256(text).digest())
     self.opener.lfslocalblobstore.write(oid, text)
 
     # replace contents with metadata