diff --git a/Pipfile.lock b/Pipfile.lock
index 7a081b0..180aeea 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -49,71 +49,86 @@
     "develop": {
         "atomicwrites": {
             "hashes": [
-                "sha256:03472c30eb2c5d1ba9227e4c2ca66ab8287fbfbbda3888aa93dc2e28fc6811b4",
-                "sha256:75a9445bac02d8d058d5e1fe689654ba5a6556a1dfd8ce6ec55a0ed79866cfa6"
+                "sha256:6d1784dea7c0c8d4a5172b6c620f40b6e4cbfdf96d783691f2e1302a7b88e197",
+                "sha256:ae70396ad1a434f9c7046fd2dd196fc04b12f9e91ffb859164193be8b6168a7a"
             ],
-            "version": "==1.3.0"
+            "version": "==1.4.0"
         },
         "attrs": {
             "hashes": [
-                "sha256:69c0dbf2ed392de1cb5ec704444b08a5ef81680a61cb899dc08127123af36a79",
-                "sha256:f0b870f674851ecbfbbbd364d6b5cbdff9dcedbc7f3f5e18a6891057f21fe399"
+                "sha256:31b2eced602aa8423c2aea9c76a724617ed67cf9513173fd3a4f03e3a929c7e6",
+                "sha256:832aa3cde19744e49938b91fea06d69ecb9e649c93ba974535d08ad92164f700"
             ],
-            "version": "==19.1.0"
+            "version": "==20.3.0"
+        },
+        "importlib-metadata": {
+            "hashes": [
+                "sha256:742add720a20d0467df2f444ae41704000f50e1234f46174b51f9c6031a1bd71",
+                "sha256:b74159469b464a99cb8cc3e21973e4d96e05d3024d337313fedb618a6e86e6f4"
+            ],
+            "markers": "python_version < '3.8'",
+            "version": "==3.7.3"
         },
         "more-itertools": {
             "hashes": [
-                "sha256:2112d2ca570bb7c3e53ea1a35cd5df42bb0fd10c45f0fb97178679c3c03d64c7",
-                "sha256:c3e4748ba1aad8dba30a4886b0b1a2004f9a863837b8654e7059eebf727afa5a"
+                "sha256:5652a9ac72209ed7df8d9c15daf4e1aa0e3d2ccd3c87f8265a0673cd9cbc9ced",
+                "sha256:c5d6da9ca3ff65220c3bfd2a8db06d698f05d4d2b9be57e1deb2be5a45019713"
             ],
             "markers": "python_version > '2.7'",
-            "version": "==7.0.0"
+            "version": "==8.7.0"
         },
         "pillow": {
             "hashes": [
-                "sha256:15c056bfa284c30a7f265a41ac4cbbc93bdbfc0dfe0613b9cb8a8581b51a9e55",
-                "sha256:1a4e06ba4f74494ea0c58c24de2bb752818e9d504474ec95b0aa94f6b0a7e479",
-                "sha256:1c3c707c76be43c9e99cb7e3d5f1bee1c8e5be8b8a2a5eeee665efbf8ddde91a",
-                "sha256:1fd0b290203e3b0882d9605d807b03c0f47e3440f97824586c173eca0aadd99d",
-                "sha256:24114e4a6e1870c5a24b1da8f60d0ba77a0b4027907860188ea82bd3508c80eb",
-                "sha256:258d886a49b6b058cd7abb0ab4b2b85ce78669a857398e83e8b8e28b317b5abb",
-                "sha256:33c79b6dd6bc7f65079ab9ca5bebffb5f5d1141c689c9c6a7855776d1b09b7e8",
-                "sha256:367385fc797b2c31564c427430c7a8630db1a00bd040555dfc1d5c52e39fcd72",
-                "sha256:3c1884ff078fb8bf5f63d7d86921838b82ed4a7d0c027add773c2f38b3168754",
-                "sha256:44e5240e8f4f8861d748f2a58b3f04daadab5e22bfec896bf5434745f788f33f",
-                "sha256:46aa988e15f3ea72dddd81afe3839437b755fffddb5e173886f11460be909dce",
-                "sha256:74d90d499c9c736d52dd6d9b7221af5665b9c04f1767e35f5dd8694324bd4601",
-                "sha256:809c0a2ce9032cbcd7b5313f71af4bdc5c8c771cb86eb7559afd954cab82ebb5",
-                "sha256:85d1ef2cdafd5507c4221d201aaf62fc9276f8b0f71bd3933363e62a33abc734",
-                "sha256:8c3889c7681af77ecfa4431cd42a2885d093ecb811e81fbe5e203abc07e0995b",
-                "sha256:9218d81b9fca98d2c47d35d688a0cea0c42fd473159dfd5612dcb0483c63e40b",
-                "sha256:9aa4f3827992288edd37c9df345783a69ef58bd20cc02e64b36e44bcd157bbf1",
-                "sha256:9d80f44137a70b6f84c750d11019a3419f409c944526a95219bea0ac31f4dd91",
-                "sha256:b7ebd36128a2fe93991293f997e44be9286503c7530ace6a55b938b20be288d8",
-                "sha256:c4c78e2c71c257c136cdd43869fd3d5e34fc2162dc22e4a5406b0ebe86958239",
-                "sha256:c6a842537f887be1fe115d8abb5daa9bc8cc124e455ff995830cc785624a97af",
-                "sha256:cf0a2e040fdf5a6d95f4c286c6ef1df6b36c218b528c8a9158ec2452a804b9b8",
-                "sha256:cfd28aad6fc61f7a5d4ee556a997dc6e5555d9381d1390c00ecaf984d57e4232",
-                "sha256:dca5660e25932771460d4688ccbb515677caaf8595f3f3240ec16c117deff89a",
-                "sha256:de7aedc85918c2f887886442e50f52c1b93545606317956d65f342bd81cb4fc3",
-                "sha256:e6c0bbf8e277b74196e3140c35f9a1ae3eafd818f7f2d3a15819c49135d6c062"
+                "sha256:01bb0a34f1a6689b138c0089d670ae2e8f886d2666a9b2f2019031abdea673c4",
+                "sha256:07872f1d8421db5a3fe770f7480835e5e90fddb58f36c216d4a2ac0d594de474",
+                "sha256:1022f8f6dc3c5b0dcf928f1c49ba2ac73051f576af100d57776e2b65c1f76a8d",
+                "sha256:14415e9e28410232370615dbde0cf0a00e526f522f665460344a5b96973a3086",
+                "sha256:172acfaf00434a28dddfe592d83f2980e22e63c769ff4a448ddf7b7a38ffd165",
+                "sha256:1c5e3c36f02c815766ae9dd91899b1c5b4652f2a37b7a51609f3bd467c0f11fb",
+                "sha256:292f2aa1ae5c5c1451cb4b558addb88c257411d3fd71c6cf45562911baffc979",
+                "sha256:2a40d7d4b17db87f5b9a1efc0aff56000e1d0d5ece415090c102aafa0ccbe858",
+                "sha256:2f0d7034d5faae9a8d1019d152ede924f653df2ce77d3bba4ce62cd21b5f94ae",
+                "sha256:33fdbd4f5608c852d97264f9d2e3b54e9e9959083d008145175b86100b275e5b",
+                "sha256:3b13d89d97b551e02549d1f0edf22bed6acfd6fd2e888cd1e9a953bf215f0e81",
+                "sha256:3e759bcc03d6f39bc751e56d86bc87252b9a21c689a27c5ed753717a87d53a5b",
+                "sha256:3ec87bd1248b23a2e4e19e774367fbe30fddc73913edc5f9b37470624f55dc1f",
+                "sha256:436b0a2dd9fe3f7aa6a444af6bdf53c1eb8f5ced9ea3ef104daa83f0ea18e7bc",
+                "sha256:43b3c859912e8bf754b3c5142df624794b18eb7ae07cfeddc917e1a9406a3ef2",
+                "sha256:4fe74636ee71c57a7f65d7b21a9f127d842b4fb75511e5d256ace258826eb352",
+                "sha256:59445af66b59cc39530b4f810776928d75e95f41e945f0c32a3de4aceb93c15d",
+                "sha256:69da5b1d7102a61ce9b45deb2920a2012d52fd8f4201495ea9411d0071b0ec22",
+                "sha256:7094bbdecb95ebe53166e4c12cf5e28310c2b550b08c07c5dc15433898e2238e",
+                "sha256:8211cac9bf10461f9e33fe9a3af6c5131f3fdd0d10672afc2abb2c70cf95c5ca",
+                "sha256:8cf77e458bd996dc85455f10fe443c0c946f5b13253773439bcbec08aa1aebc2",
+                "sha256:924fc33cb4acaf6267b8ca3b8f1922620d57a28470d5e4f49672cea9a841eb08",
+                "sha256:99ce3333b40b7a4435e0a18baad468d44ab118a4b1da0af0a888893d03253f1d",
+                "sha256:a7d690b2c5f7e4a932374615fedceb1e305d2dd5363c1de15961725fe10e7d16",
+                "sha256:b9af590adc1e46898a1276527f3cfe2da8048ae43fbbf9b1bf9395f6c99d9b47",
+                "sha256:bb18422ad00c1fecc731d06592e99c3be2c634da19e26942ba2f13d805005cf2",
+                "sha256:c10af40ee2f1a99e1ae755ab1f773916e8bca3364029a042cd9161c400416bd8",
+                "sha256:c143c409e7bc1db784471fe9d0bf95f37c4458e879ad84cfae640cb74ee11a26",
+                "sha256:c448d2b335e21951416a30cd48d35588d122a912d5fe9e41900afacecc7d21a1",
+                "sha256:d30f30c044bdc0ab8f3924e1eeaac87e0ff8a27e87369c5cac4064b6ec78fd83",
+                "sha256:df534e64d4f3e84e8f1e1a37da3f541555d947c1c1c09b32178537f0f243f69d",
+                "sha256:f6fc18f9c9c7959bf58e6faf801d14fafb6d4717faaf6f79a68c8bb2a13dcf20",
+                "sha256:ff83dfeb04c98bb3e7948f876c17513a34e9a19fd92e292288649164924c1b39"
             ],
             "index": "pypi",
-            "version": "==6.0.0"
+            "version": "==8.1.1"
         },
         "pluggy": {
             "hashes": [
-                "sha256:19ecf9ce9db2fce065a7a0586e07cfb4ac8614fe96edf628a264b1c70116cf8f",
-                "sha256:84d306a647cc805219916e62aab89caa97a33a1dd8c342e87a37f91073cd4746"
+                "sha256:15b2acde666561e1298d71b523007ed7364de07029219b604cf808bfa1c765b0",
+                "sha256:966c145cd83c96502c3c3868f50408687b38434af77734af1e9ca461a4081d2d"
             ],
-            "version": "==0.9.0"
+            "version": "==0.13.1"
         },
         "py": {
             "hashes": [
-                "sha256:64f65755aee5b381cea27766a3a147c3f15b9b6b9ac88676de66ba2ae36793fa",
-                "sha256:dc639b046a6e2cff5bbe40194ad65936d6ba360b52b3c3fe1d08a82dd50b5e53"
+                "sha256:21b81bda15b66ef5e1a777a21c4dcd9c20ad3efd0b3f817e7a809035269e1bd3",
+                "sha256:3b80836aa6d1feeaa108e046da6423ab8f6ceda6468545ae8d02d9d58d18818a"
             ],
-            "version": "==1.8.0"
+            "version": "==1.10.0"
         },
         "pytest": {
             "hashes": [
@@ -125,10 +140,26 @@
         },
         "six": {
             "hashes": [
-                "sha256:3350809f0555b11f552448330d0b52d5f24c91a322ea4a15ef22629740f3761c",
-                "sha256:d16a0141ec1a18405cd4ce8b4613101da75da0e9a7aec5bdd4fa804d0e0eba73"
+                "sha256:30639c035cdb23534cd4aa2dd52c3bf48f06e5f4a941509c8bafd8ce11080259",
+                "sha256:8b74bedcbbbaca38ff6d7491d76f2b06b3592611af620f8426e82dddb04a5ced"
+            ],
+            "version": "==1.15.0"
+        },
+        "typing-extensions": {
+            "hashes": [
+                "sha256:7cb407020f00f7bfc3cb3e7881628838e69d8f3fcab2f64742a5e76b2f841918",
+                "sha256:99d4073b617d30288f569d3f13d2bd7548c3a7e4c8de87db09a9d29bb3a4a60c",
+                "sha256:dafc7639cde7f1b6e1acc0f457842a83e722ccca8eef5270af2d74792619a89f"
+            ],
+            "markers": "python_version < '3.8'",
+            "version": "==3.7.4.3"
+        },
+        "zipp": {
+            "hashes": [
+                "sha256:3607921face881ba3e026887d8150cca609d517579abe052ac81fc5aeffdbd76",
+                "sha256:51cb66cc54621609dd593d1787f286ee42a5c0adbb4b29abea5a63edc3e03098"
             ],
-            "version": "==1.12.0"
+            "version": "==3.4.1"
         }
     }
 }