From 26246b5454c3fdd7a7b904d74759a87b2b4b573e Mon Sep 17 00:00:00 2001
From: Yehuda Deutsch <yeh@uda.co.il>
Date: Mon, 11 Dec 2017 14:52:59 +0200
Subject: [PATCH] Pass clear flag to lock when updating

---
 pipenv/cli.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pipenv/cli.py b/pipenv/cli.py
index dcd4db1f..3d180521 100644
--- a/pipenv/cli.py
+++ b/pipenv/cli.py
@@ -2550,7 +2550,7 @@ def update(ctx, dev=False, three=None, python=None, dry_run=False, bare=False, d
         do_purge()
 
         # Lock.
-        do_lock(pre=pre)
+        do_lock(clear=clear, pre=pre)
 
         # Install everything.
         do_init(dev=dev, verbose=verbose, concurrent=concurrent)