diff --git a/Pipfile.lock b/Pipfile.lock
index b51a361..88d7973 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -31,7 +31,6 @@
                 "sha256:0d6f53a15db4120f2b08c94f11e7d93d2c911ee118b6b30a04ec3ee8310179fa",
                 "sha256:f864054d66fd9118f2e67044ac8981a54775ec5b67aed0441892edb553d21da5"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
             "version": "==4.0.0"
         },
         "coreapi": {
@@ -52,11 +51,11 @@
         },
         "django": {
             "hashes": [
-                "sha256:30c235dec87e05667597e339f194c9fed6c855bda637266ceee891bf9093da43",
-                "sha256:e319a7164d6d30cb177b3fd74d02c52f1185c37304057bb76d74047889c605d9"
+                "sha256:2484f115891ab1a0e9ae153602a641fbc15d7894c036d79fb78662c0965d7954",
+                "sha256:2569f9dc5f8e458a5e988b03d6b7a02bda59b006d6782f4ea0fd590ed7336a64"
             ],
             "index": "pypi",
-            "version": "==2.2.19"
+            "version": "==2.2.20"
         },
         "django-appconf": {
             "hashes": [
@@ -120,7 +119,6 @@
                 "sha256:b307872f855b18632ce0c21c5e45be78c0ea7ae4c15c828c20788b26921eb3f6",
                 "sha256:b97d804b1e9b523befed77c48dacec60e6dcb0b5391d57af6a65a312a90648c0"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==2.10"
         },
         "itypes": {
@@ -135,7 +133,6 @@
                 "sha256:03e47ad063331dd6a3f04a43eddca8a966a26ba0c5b7207a9a9e4e08f1b29419",
                 "sha256:a6d58433de0ae800347cab1fa3043cebbabe8baa9d29e668f1c768cb87a333c6"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
             "version": "==2.11.3"
         },
         "markdown": {
@@ -204,7 +201,6 @@
                 "sha256:e8313f01ba26fbbe36c7be1966a7b7424942f670f38e666995b88d012765b9be",
                 "sha256:feb7b34d6325451ef96bc0e36e1a6c0c1c64bc1fbec4b854f4529e51887b1621"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==1.1.1"
         },
         "mock": {
@@ -348,7 +344,6 @@
                 "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"
         },
         "sqlparse": {
@@ -356,7 +351,6 @@
                 "sha256:017cde379adbd6a1f15a61873f43e8274179378e95ef3fede90b5aa64d304ed0",
                 "sha256:0f91fd2e829c44362cbcfab3e9ae12e22badaa8a29ad5ff599f9ec109f0454e8"
             ],
-            "markers": "python_version >= '3.5'",
             "version": "==0.4.1"
         },
         "uritemplate": {
@@ -364,7 +358,6 @@
                 "sha256:07620c3f3f8eed1f12600845892b0e036a2420acf513c53f7de0abd911a5894f",
                 "sha256:5af8ad10cec94f215e3f48112de2022e1d5a37ed427fbd88652fa908f2ab7cae"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==3.0.1"
         },
         "urllib3": {
@@ -372,7 +365,6 @@
                 "sha256:2f4da4594db7e1e110a944bb1b551fdf4e6c136ad42e4234131391e21eb5b0df",
                 "sha256:e7b021f7241115872f92f43c6508082facffbd1c048e3c6e2bb9c2a157e28937"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4' and python_version < '4'",
             "version": "==1.26.4"
         }
     },
@@ -389,7 +381,6 @@
                 "sha256:31b2eced602aa8423c2aea9c76a724617ed67cf9513173fd3a4f03e3a929c7e6",
                 "sha256:832aa3cde19744e49938b91fea06d69ecb9e649c93ba974535d08ad92164f700"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==20.3.0"
         },
         "black": {
@@ -406,7 +397,6 @@
                 "sha256:d2b5255c7c6349bc1bd1e59e08cd12acbbd63ce649f2588755783aa94dfb6b1a",
                 "sha256:dacca89f4bfadd5de3d7489b7c8a566eee0d3676333fbb50030263894c38c0dc"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
             "version": "==7.1.2"
         },
         "django-extensions": {
@@ -430,23 +420,13 @@
                 "sha256:83c4f8cec14cd08179d8b4bfe8c5e48724efadac8add187f385c68d6ae2345e6",
                 "sha256:b1bead90b70cf6ec3f0710ae53a525360fa360d306a86583adc6bf83a4db537d"
             ],
-            "markers": "python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==0.18.2"
         },
-        "importlib-metadata": {
-            "hashes": [
-                "sha256:742add720a20d0467df2f444ae41704000f50e1234f46174b51f9c6031a1bd71",
-                "sha256:b74159469b464a99cb8cc3e21973e4d96e05d3024d337313fedb618a6e86e6f4"
-            ],
-            "markers": "python_version < '3.8'",
-            "version": "==3.7.3"
-        },
         "jinja2": {
             "hashes": [
                 "sha256:03e47ad063331dd6a3f04a43eddca8a966a26ba0c5b7207a9a9e4e08f1b29419",
                 "sha256:a6d58433de0ae800347cab1fa3043cebbabe8baa9d29e668f1c768cb87a333c6"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
             "version": "==2.11.3"
         },
         "joblib": {
@@ -454,7 +434,6 @@
                 "sha256:9c17567692206d2f3fb9ecf5e991084254fe631665c450b443761c4186a613f7",
                 "sha256:feeb1ec69c4d45129954f1b7034954241eedfd6ba39b5e9e4b6883be3332d5e5"
             ],
-            "markers": "python_version >= '3.6'",
             "version": "==1.0.1"
         },
         "livereload": {
@@ -540,7 +519,6 @@
                 "sha256:e8313f01ba26fbbe36c7be1966a7b7424942f670f38e666995b88d012765b9be",
                 "sha256:feb7b34d6325451ef96bc0e36e1a6c0c1c64bc1fbec4b854f4529e51887b1621"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==1.1.1"
         },
         "mccabe": {
@@ -571,15 +549,14 @@
                 "sha256:6947fb7f5e4291e3c61405bad3539d81e0b3cd62ae0d66ced018128af509c68f",
                 "sha256:d90c807a88348aa6d1805657ec5c0b2d8d609c110e62b9dce4daf7fa981fa338"
             ],
-            "markers": "python_version >= '3.5'",
             "version": "==1.0.1"
         },
         "nltk": {
             "hashes": [
-                "sha256:845365449cd8c5f9731f7cb9f8bd6fd0767553b9d53af9eb1b3abf7700936b35",
-                "sha256:c4f9909ab30881a0cc97fa69fef6ff85c33ec303e7bc20a9b428073bd4b5988c"
+                "sha256:1235660f52ab10fda34d5277096724747f767b2903e1c0c4e14bde013552c9ba",
+                "sha256:cbc2ed576998fcf7cd181eeb3ca029e5f0025b264074b4beb57ce780673f8b86"
             ],
-            "version": "==3.5"
+            "version": "==3.6.1"
         },
         "pathspec": {
             "hashes": [
@@ -593,23 +570,20 @@
                 "sha256:514f76d918fcc0b55c6680472f0a37970994e07bbb80725808c17089be302068",
                 "sha256:c389c1d06bf7904078ca03399a4816f974a1d590090fecea0c63ec26ebaf1cef"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==2.7.0"
         },
         "pyflakes": {
             "hashes": [
-                "sha256:910208209dcea632721cb58363d0f72913d9e8cf64dc6f8ae2e02a3609aba40d",
-                "sha256:e59fd8e750e588358f1b8885e5a4751203a0516e0ee6d34811089ac294c8806f"
+                "sha256:7893783d01b8a89811dd72d7dfd4d84ff098e5eed95cfa8905b22bbffe52efc3",
+                "sha256:f5bc8ecabc05bb9d291eb5203d6810b49040f6ff446a756326104746cc00c1db"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
-            "version": "==2.3.0"
+            "version": "==2.3.1"
         },
         "pygments": {
             "hashes": [
                 "sha256:2656e1a6edcdabf4275f9a3640db59fd5de107d88e8663c5d4e9a0fa62f77f94",
                 "sha256:534ef71d539ae97d4c3a4cf7d6f110f214b0e687e92f9cb9d2a3b0d3101289c8"
             ],
-            "markers": "python_version >= '3.5'",
             "version": "==2.8.1"
         },
         "pymdown-extensions": {
@@ -617,7 +591,6 @@
                 "sha256:478b2c04513fbb2db61688d5f6e9030a92fb9be14f1f383535c43f7be9dff95b",
                 "sha256:632371fa3bf1b21a0e3f4063010da59b41db049f261f4c0b0872069a9b6d1735"
             ],
-            "markers": "python_version >= '3.6'",
             "version": "==8.1.1"
         },
         "pyyaml": {
@@ -652,7 +625,6 @@
                 "sha256:fdc842473cd33f45ff6bce46aea678a54e3d21f1b61a7750ce3c498eedfe25d6",
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-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4, 3.5'",
             "version": "==5.4.1"
         },
         "qrcode": {
@@ -665,58 +637,57 @@
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         "regex": {
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+                "sha256:d3029c340cfbb3ac0a71798100ccc13b97dddf373a4ae56b6a72cf70dfd53bc8",
+                "sha256:e512d8ef5ad7b898cdb2d8ee1cb09a8339e4f8be706d27eaa180c2f177248a10",
+                "sha256:e8e5b509d5c2ff12f8418006d5a90e9436766133b564db0abaec92fd27fcee29",
+                "sha256:ee54ff27bf0afaf4c3b3a62bcd016c12c3fdb4ec4f413391a90bd38bc3624605",
+                "sha256:f153be3ed31a48e47cc32cf0ffb14d27ccdefacac04f9eaf7fae1a59643ea9ef",
+                "sha256:fa4537fb4a98fe8fde99626e4681cc644bdcf2a795038533f9f711513a862ae6",
+                "sha256:fd45ff9293d9274c5008a2054ecef86a9bfe819a67c7be1afb65e69b405b3042"
             ],
-            "version": "==2021.3.17"
+            "version": "==2021.4.4"
         },
         "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"
         },
         "toml": {
@@ -724,7 +695,6 @@
                 "sha256:806143ae5bfb6a3c6e736a764057db0e6a0e05e338b5630894a5f779cabb4f9b",
                 "sha256:b3bda1d108d5dd99f4a20d24d9c348e91c4db7ab1b749200bded2f839ccbe68f"
             ],
-            "markers": "python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==0.10.2"
         },
         "tornado": {
@@ -778,11 +748,10 @@
         },
         "tqdm": {
             "hashes": [
-                "sha256:9fdf349068d047d4cfbe24862c425883af1db29bcddf4b0eeb2524f6fbdb23c7",
-                "sha256:d666ae29164da3e517fcf125e41d4fe96e5bb375cd87ff9763f6b38b5592fe33"
+                "sha256:daec693491c52e9498632dfbe9ccfc4882a557f5fa08982db1b4d3adbe0887c3",
+                "sha256:ebdebdb95e3477ceea267decfc0784859aa3df3e27e22d23b83e9b272bf157ae"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
-            "version": "==4.59.0"
+            "version": "==4.60.0"
         },
         "typed-ast": {
             "hashes": [
@@ -820,23 +789,6 @@
                 "sha256:e683e409e5c45d5c9082dc1daf13f6374300806240719f95dc783d1fc942af10"
             ],
             "version": "==1.4.2"
-        },
-        "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"
-            ],
-            "markers": "python_version >= '3.6'",
-            "version": "==3.4.1"
         }
     }
 }