diff --git a/Pipfile.lock b/Pipfile.lock
index 86f282a..9fd2115 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -32,24 +32,26 @@
         },
         "idna": {
             "hashes": [
-                "sha256:320229aadbdfc597bc28876748cc0c9d04d476e0fe6caacaaddea146365d9f63",
-                "sha256:c9a26e10e5558412384fac891eefb41957831d31be55f1e2c98ed97a70abb969"
+                "sha256:b307872f855b18632ce0c21c5e45be78c0ea7ae4c15c828c20788b26921eb3f6",
+                "sha256:b97d804b1e9b523befed77c48dacec60e6dcb0b5391d57af6a65a312a90648c0"
             ],
-            "version": "==3.0"
+            "version": "==2.10"
         },
         "requests": {
             "hashes": [
                 "sha256:27973dd4a904a4f13b263a19c866c13b92a39ed1c964655f025f3f8d3d75b804",
                 "sha256:c210084e36a42ae6b9219e00e48287def368a26d03a048ddad7bfee44f75871e"
             ],
+            "index": "pypi",
             "version": "==2.25.1"
         },
         "urllib3": {
             "hashes": [
-                "sha256:19188f96923873c92ccb987120ec4acaa12f0461fa9ce5d3d0772bc965a39e08",
-                "sha256:d8ff90d979214d7b4f8ce956e80f4028fc6860e4431f731ea4a8c08f23f99473"
+                "sha256:2f4da4594db7e1e110a944bb1b551fdf4e6c136ad42e4234131391e21eb5b0df",
+                "sha256:e7b021f7241115872f92f43c6508082facffbd1c048e3c6e2bb9c2a157e28937"
             ],
-            "version": "==1.26.2"
+            "index": "pypi",
+            "version": "==1.26.4"
         }
     },
     "develop": {
@@ -112,6 +114,7 @@
                 "sha256:fda29412a66099af6d6de0baa6bd7c52674de177ec2ad2630ca264142d69c6c7",
                 "sha256:ff1330e8bc996570221b450e2d539134baa9465f5cb98aff0e0f73f34172e0ae"
             ],
+            "index": "pypi",
             "version": "==5.3.1"
         },
         "flake8": {
@@ -119,8 +122,16 @@
                 "sha256:749dbbd6bfd0cf1318af27bf97a14e28e5ff548ef8e5b1566ccfb25a11e7c839",
                 "sha256:aadae8761ec651813c24be05c6f7b4680857ef6afaae4651a4eccaef97ce6c3b"
             ],
+            "index": "pypi",
             "version": "==3.8.4"
         },
+        "iniconfig": {
+            "hashes": [
+                "sha256:011e24c64b7f47f6ebd835bb12a743f2fbe9a26d4cecaa7f53bc4f35ee9da8b3",
+                "sha256:bc3af051d7d14b2ee5ef9969666def0cd1a000e121eaea580d4a313df4b37f32"
+            ],
+            "version": "==1.1.1"
+        },
         "mccabe": {
             "hashes": [
                 "sha256:ab8a6258860da4b6677da4bd2fe5dc2c659cff31b3ee4f7f5d64e79735b80d42",
@@ -128,26 +139,18 @@
             ],
             "version": "==0.6.1"
         },
-        "more-itertools": {
-            "hashes": [
-                "sha256:8e1a2a43b2f2727425f2b5839587ae37093f19153dc26c0927d1048ff6557330",
-                "sha256:b3a9005928e5bed54076e6e549c792b306fddfe72b2d1d22dd63d42d5d3899cf"
-            ],
-            "version": "==8.6.0"
-        },
         "packaging": {
             "hashes": [
-                "sha256:24e0da08660a87484d1602c30bb4902d74816b6985b93de36926f5bc95741858",
-                "sha256:78598185a7008a470d64526a8059de9aaa449238f280fc9eb6b13ba6c4109093"
+                "sha256:5b327ac1320dc863dca72f4514ecc086f31186744b84a230374cc1fd776feae5",
+                "sha256:67714da7f7bc052e064859c05c595155bd1ee9f69f76557e21f051443c20947a"
             ],
-            "version": "==20.8"
+            "version": "==20.9"
         },
         "pluggy": {
             "hashes": [
                 "sha256:15b2acde666561e1298d71b523007ed7364de07029219b604cf808bfa1c765b0",
                 "sha256:966c145cd83c96502c3c3868f50408687b38434af77734af1e9ca461a4081d2d"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==0.13.1"
         },
         "py": {
@@ -162,7 +165,6 @@
                 "sha256:2295e7b2f6b5bd100585ebcb1f616591b652db8a741695b3d8f5d28bdc934367",
                 "sha256:c58a7d2815e0e8d7972bf1803331fb0152f867bd89adf8a01dfd55085434192e"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==2.6.0"
         },
         "pyflakes": {
@@ -170,7 +172,6 @@
                 "sha256:0d94e0e05a19e57a99444b6ddcf9a6eb2e5c68d3ca1e98e90707af8152c90a92",
                 "sha256:35b2d75ee967ea93b55750aa9edbbf72813e06a66ba54438df2cfac9e3c27fc8"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==2.2.0"
         },
         "pyparsing": {
@@ -178,7 +179,6 @@
                 "sha256:c203ec8783bf771a155b207279b9bccb8dea02d8f0c9e5f8ead507bc3246ecc1",
                 "sha256:ef9d7589ef3c200abe66653d3f1ab1033c3c419ae9b9bdb1240a85b024efc88b"
             ],
-            "markers": "python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==2.4.7"
         },
         "pytest": {
@@ -186,6 +186,7 @@
                 "sha256:1969f797a1a0dbd8ccf0fecc80262312729afea9c17f1d70ebf85c5e76c6f7c8",
                 "sha256:66e419b1899bc27346cb2c993e12c5e5e8daba9073c1fbce33b9807abc95c306"
             ],
+            "index": "pypi",
             "version": "==6.2.1"
         },
         "pytest-cov": {
@@ -193,6 +194,7 @@
                 "sha256:45ec2d5182f89a81fc3eb29e3d1ed3113b9e9a873bcddb2a71faaab066110191",
                 "sha256:47bd0ce14056fdd79f93e1713f88fad7bdcc583dcd7783da86ef2f085a0bb88e"
             ],
+            "index": "pypi",
             "version": "==2.10.1"
         },
         "pytest-mock": {
@@ -200,22 +202,15 @@
                 "sha256:c0fc979afac4aaba545cbd01e9c20736eb3fefb0a066558764b07d3de8f04ed3",
                 "sha256:c3981f5edee6c4d1942250a60d9b39d38d5585398de1bfce057f925bdda720f4"
             ],
+            "index": "pypi",
             "version": "==3.4.0"
         },
-        "six": {
-            "hashes": [
-                "sha256:30639c035cdb23534cd4aa2dd52c3bf48f06e5f4a941509c8bafd8ce11080259",
-                "sha256:8b74bedcbbbaca38ff6d7491d76f2b06b3592611af620f8426e82dddb04a5ced"
-            ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
-            "version": "==1.15.0"
-        },
-        "wcwidth": {
+        "toml": {
             "hashes": [
-                "sha256:beb4802a9cebb9144e99086eff703a642a13d6a0052920003a230f3294bbe784",
-                "sha256:c4d647b99872929fdb7bdcaa4fbe7f01413ed3d98077df798530e5b04f116c83"
+                "sha256:806143ae5bfb6a3c6e736a764057db0e6a0e05e338b5630894a5f779cabb4f9b",
+                "sha256:b3bda1d108d5dd99f4a20d24d9c348e91c4db7ab1b749200bded2f839ccbe68f"
             ],
-            "version": "==0.2.5"
+            "version": "==0.10.2"
         }
     }
 }