From 1fa3e2a567da779b0c081ac28893aca3353c0674 Mon Sep 17 00:00:00 2001
From: Kenneth Reitz <me@kennethreitz.org>
Date: Sun, 11 Mar 2018 11:08:51 -0400
Subject: [PATCH] dedupe

Signed-off-by: Kenneth Reitz <me@kennethreitz.org>
---
 pipenv/utils.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pipenv/utils.py b/pipenv/utils.py
index 025193db..23c285ac 100644
--- a/pipenv/utils.py
+++ b/pipenv/utils.py
@@ -449,6 +449,8 @@ def resolve_deps(deps, which, project, sources=None, verbose=False, python=False
                 if verbose:
                     print('Error generating hash for {}'.format(name))
 
+            collected_hashes = list(set(collected_hashes))
+
             d = {'name': name, 'version': version, 'hashes': collected_hashes}
 
             if index: