diff --git a/news/2419.bugfix b/news/2419.bugfix
new file mode 100644
index 00000000..fec7157a
--- /dev/null
+++ b/news/2419.bugfix
@@ -0,0 +1 @@
+Updated requirementslib to fix an issue with properly quoting markers in VCS requirements.
diff --git a/news/2419.vendor b/news/2419.vendor
new file mode 100644
index 00000000..fec7157a
--- /dev/null
+++ b/news/2419.vendor
@@ -0,0 +1 @@
+Updated requirementslib to fix an issue with properly quoting markers in VCS requirements.
diff --git a/pipenv/vendor/requirementslib/__init__.py b/pipenv/vendor/requirementslib/__init__.py
index f3393c11..7e4acf40 100644
--- a/pipenv/vendor/requirementslib/__init__.py
+++ b/pipenv/vendor/requirementslib/__init__.py
@@ -1,5 +1,5 @@
 # -*- coding=utf-8 -*-
-__version__ = "1.0.5.dev0"
+__version__ = "1.0.6"
 
 
 from .exceptions import RequirementError
diff --git a/pipenv/vendor/requirementslib/models/requirements.py b/pipenv/vendor/requirementslib/models/requirements.py
index 16d99863..6dc76e0d 100644
--- a/pipenv/vendor/requirementslib/models/requirements.py
+++ b/pipenv/vendor/requirementslib/models/requirements.py
@@ -649,7 +649,7 @@ class Requirement(object):
     @property
     def markers_as_pip(self):
         if self.markers:
-            return "; {0}".format(self.markers)
+            return "; {0}".format(self.markers.replace('"', "'"))
 
         return ""
 
diff --git a/pipenv/vendor/vendor.txt b/pipenv/vendor/vendor.txt
index 6b44b53d..a19294b7 100644
--- a/pipenv/vendor/vendor.txt
+++ b/pipenv/vendor/vendor.txt
@@ -27,7 +27,7 @@ requests==2.19.1
     idna==2.7
     urllib3==1.23
     certifi==2018.4.16
-requirementslib==1.0.5
+requirementslib==1.0.6
     attrs==18.1.0
     distlib==0.2.7
     packaging==17.1