updated dependancies

Pipfile

@@ -18,6 +18,7 @@ pytest-cov = "*"
 bumpversion = "*"
 coveralls = "*"
 twine = "*"
+more-itertools = "==6.0.0"
 
 [requires]
 python_version = "3.6"

Pipfile.lock

@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "7b66cc55f724f5fad32bf12e902f3505f261760bf5a32fa26b7961002594b3dc"
+            "sha256": "8d92ab7e071e4fc311ab727390cdec1e229fd018eb01366d5db24a1751bf3786"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -203,11 +203,11 @@
         },
         "more-itertools": {
             "hashes": [
-                "sha256:2112d2ca570bb7c3e53ea1a35cd5df42bb0fd10c45f0fb97178679c3c03d64c7",
-                "sha256:c3e4748ba1aad8dba30a4886b0b1a2004f9a863837b8654e7059eebf727afa5a"
+                "sha256:0125e8f60e9e031347105eb1682cef932f5e97d7b9a1a28d9bf00c22a5daef40",
+                "sha256:590044e3942351a1bdb1de960b739ff4ce277960f2425ad4509446dbace8d9d1"
             ],
-            "markers": "python_version > '2.7'",
-            "version": "==7.0.0"
+            "index": "pypi",
+            "version": "==6.0.0"
         },
         "nodeenv": {
             "hashes": [