diff --git a/Pipfile.lock b/Pipfile.lock
index dd9760b..bc40d6f 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "74eaef62b5bd0d90782ec39f564fb26f021942344ceb1388af81e24c6ee8d40b"
+            "sha256": "498bc207dff124b0bf695dacb5e14ccd65782f4e56199553948a21af83446d88"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -18,45 +18,72 @@
     "default": {
         "cffi": {
             "hashes": [
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-                "sha256:3d3dd4c9e559eb172ecf00a2a7517e97d1e96de2a5e610bd9b68cea3925b4892",
-                "sha256:43e0b9d9e2c9e5d152946b9c5fe062c151614b262fda2e7b201204de0b99e482",
-                "sha256:48e1c69bbacfc3d932221851b39d49e81567a4d4aac3b21258d9c24578280058",
-                "sha256:51182f8927c5af975fece87b1b369f722c570fe169f9880764b1ee3bca8347b5",
-                "sha256:58e3f59d583d413809d60779492342801d6e82fefb89c86a38e040c16883be53",
-                "sha256:5de7970188bb46b7bf9858eb6890aad302577a5f6f75091fd7cdd3ef13ef3045",
-                "sha256:65fa59693c62cf06e45ddbb822165394a288edce9e276647f0046e1ec26920f3",
-                "sha256:69e395c24fc60aad6bb4fa7e583698ea6cc684648e1ffb7fe85e3c1ca131a7d5",
-                "sha256:6c97d7350133666fbb5cf4abdc1178c812cb205dc6f41d174a7b0f18fb93337e",
-                "sha256:6e4714cc64f474e4d6e37cfff31a814b509a35cb17de4fb1999907575684479c",
-                "sha256:72d8d3ef52c208ee1c7b2e341f7d71c6fd3157138abf1a95166e6165dd5d4369",
-                "sha256:8ae6299f6c68de06f136f1f9e69458eae58f1dacf10af5c17353eae03aa0d827",
-                "sha256:8b198cec6c72df5289c05b05b8b0969819783f9418e0409865dac47288d2a053",
-                "sha256:99cd03ae7988a93dd00bcd9d0b75e1f6c426063d6f03d2f90b89e29b25b82dfa",
-                "sha256:9cf8022fb8d07a97c178b02327b284521c7708d7c71a9c9c355c178ac4bbd3d4",
-                "sha256:9de2e279153a443c656f2defd67769e6d1e4163952b3c622dcea5b08a6405322",
-                "sha256:9e93e79c2551ff263400e1e4be085a1210e12073a31c2011dbbda14bda0c6132",
-                "sha256:9ff227395193126d82e60319a673a037d5de84633f11279e336f9c0f189ecc62",
-                "sha256:a465da611f6fa124963b91bf432d960a555563efe4ed1cc403ba5077b15370aa",
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-                "sha256:fd78e5fee591709f32ef6edb9a015b4aa1a5022598e36227500c8f4e02328d9c"
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+                "sha256:173379135477dc8cac4bc58f45db08ab45d228b3363adb7af79436135d028405",
+                "sha256:198caafb44239b60e252492445da556afafc7d1e3ab7a1fb3f0584ef6d742375",
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+                "sha256:320dab6e7cb2eacdf0e658569d2575c4dad258c0fcc794f46215e1e39f90f2c3",
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+                "sha256:70df4e3b545a17496c9b3f41f5115e69a4f2e77e94e1d2a8e1070bc0c38c8a3c",
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+                "sha256:a0f100c8912c114ff53e1202d0078b425bee3649ae34d7b070e9697f93c5d52d",
+                "sha256:a591fe9e525846e4d154205572a029f653ada1a78b93697f3b5a8f1f2bc055b9",
+                "sha256:a5c84c68147988265e60416b57fc83425a78058853509c1b0629c180094904a5",
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+                "sha256:cba9d6b9a7d64d4bd46167096fc9d2f835e25d7e4c121fb2ddfc6528fb0413b2",
+                "sha256:cc4d65aeeaa04136a12677d3dd0b1c0c94dc43abac5860ab33cceb42b801c1e8",
+                "sha256:ce4bcc037df4fc5e3d184794f27bdaab018943698f4ca31630bc7f84a7b69c6d",
+                "sha256:cec7d9412a9102bdc577382c3929b337320c4c4c4849f2c5cdd14d7368c5562d",
+                "sha256:d400bfb9a37b1351253cb402671cea7e89bdecc294e8016a707f6d1d8ac934f9",
+                "sha256:d61f4695e6c866a23a21acab0509af1cdfd2c013cf256bbf5b6b5e2695827162",
+                "sha256:db0fbb9c62743ce59a9ff687eb5f4afbe77e5e8403d6697f7446e5f609976f76",
+                "sha256:dd86c085fae2efd48ac91dd7ccffcfc0571387fe1193d33b6394db7ef31fe2a4",
+                "sha256:e00b098126fd45523dd056d2efba6c5a63b71ffe9f2bbe1a4fe1716e1d0c331e",
+                "sha256:e229a521186c75c8ad9490854fd8bbdd9a0c9aa3a524326b55be83b54d4e0ad9",
+                "sha256:e263d77ee3dd201c3a142934a086a4450861778baaeeb45db4591ef65550b0a6",
+                "sha256:ed9cb427ba5504c1dc15ede7d516b84757c3e3d7868ccc85121d9310d27eed0b",
+                "sha256:fa6693661a4c91757f4412306191b6dc88c1703f780c8234035eac011922bc01",
+                "sha256:fcd131dd944808b5bdb38e6f5b53013c5aa4f334c5cad0c72742f6eba4b73db0"
             ],
-            "version": "==1.14.5"
+            "version": "==1.15.1"
         },
         "colorama": {
             "hashes": [
@@ -76,21 +103,30 @@
         },
         "cryptography": {
             "hashes": [
-                "sha256:066bc53f052dfeda2f2d7c195cf16fb3e5ff13e1b6b7415b468514b40b381a5b",
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-                "sha256:fec7fb46b10da10d9e1d078d1ff8ed9e05ae14f431fdbd11145edd0550b9a964"
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+                "sha256:6f8ba7f0328b79f08bdacc3e4e66fb4d7aab0c3584e0bd41328dce5262e26b2e",
+                "sha256:706843b48f9a3f9b9911979761c91541e3d90db1ca905fd63fee540a217698bc",
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+                "sha256:b0afd054cd42f3d213bf82c629efb1ee5f22eba35bf0eec88ea9ea7304f511a2",
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+                "sha256:d1f6198ee6d9148405e49887803907fe8962a23e6c6f83ea7d98f1c0de375695",
+                "sha256:e124352fd3db36a9d4a21c1aa27fd5d051e621845cb87fb851c08f4f75ce8be6",
+                "sha256:e422abdec8b5fa8462aa016786680720d78bdce7a30c652b7fadf83a4ba35336",
+                "sha256:ef8b72fa70b348724ff1218267e7f7375b8de4e8194d1636ee60510aae104cd0",
+                "sha256:f0c64d1bd842ca2633e74a1a28033d139368ad959872533b1bab8c80e8240a0c",
+                "sha256:f24077a3b5298a5a06a8e0536e3ea9ec60e4c7ac486755e5fb6e6ea9b3500106",
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             ],
             "index": "pypi",
-            "version": "==3.4.6"
+            "version": "==39.0.1"
         },
         "mysql-connector": {
             "hashes": [
@@ -101,52 +137,53 @@
         },
         "pycparser": {
             "hashes": [
-                "sha256:2d475327684562c3a96cc71adf7dc8c4f0565175cf86b6d7a404ff4c771f15f0",
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             ],
             "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
-            "version": "==2.20"
+            "version": "==2.21"
         },
         "six": {
             "hashes": [
-                "sha256:30639c035cdb23534cd4aa2dd52c3bf48f06e5f4a941509c8bafd8ce11080259",
-                "sha256:8b74bedcbbbaca38ff6d7491d76f2b06b3592611af620f8426e82dddb04a5ced"
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+                "sha256:8abb2f1d86890a2dfb989f9a77cfcfd3e47c2a354b01111771326f8aa26e0254"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2'",
-            "version": "==1.15.0"
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
+            "version": "==1.16.0"
         }
     },
     "develop": {
-        "flake9": {
+        "flake8": {
             "hashes": [
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-                "sha256:daefdbfb3d320eb215a4a52c62a4b4a027cbe11d39f5dab30df908b40fce5ba7"
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             ],
             "index": "pypi",
-            "version": "==3.8.3.post2"
+            "version": "==6.0.0"
         },
         "mccabe": {
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+                "sha256:6c2d30ab6be0e4a46919781807b4f0d834ebdd6c6e3dca0bda5a15f863427b6e"
             ],
-            "version": "==0.6.1"
+            "markers": "python_version >= '3.6'",
+            "version": "==0.7.0"
         },
         "pycodestyle": {
             "hashes": [
-                "sha256:2295e7b2f6b5bd100585ebcb1f616591b652db8a741695b3d8f5d28bdc934367",
-                "sha256:c58a7d2815e0e8d7972bf1803331fb0152f867bd89adf8a01dfd55085434192e"
+                "sha256:347187bdb476329d98f695c213d7295a846d1152ff4fe9bacb8a9590b8ee7053",
+                "sha256:8a4eaf0d0495c7395bdab3589ac2db602797d76207242c17d470186815706610"
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-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
-            "version": "==2.6.0"
+            "markers": "python_version >= '3.6'",
+            "version": "==2.10.0"
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+                "sha256:ec55bf7fe21fff7f1ad2f7da62363d749e2a470500eab1b555334b67aa1ef8cf",
+                "sha256:ec8b276a6b60bd80defed25add7e439881c19e64850afd9b346283d4165fd0fd"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
-            "version": "==2.2.0"
+            "markers": "python_version >= '3.6'",
+            "version": "==3.0.1"
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         "yapf": {
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