diff --git a/backend/Pipfile.lock b/backend/Pipfile.lock
index 2030e846..0bc89ac5 100644
--- a/backend/Pipfile.lock
+++ b/backend/Pipfile.lock
@@ -104,30 +104,29 @@
         },
         "cryptography": {
             "hashes": [
-                "sha256:2049f8b87f449fc6190350de443ee0c1dd631f2ce4fa99efad2984de81031681",
-                "sha256:231c4a69b11f6af79c1495a0e5a85909686ea8db946935224b7825cfb53827ed",
-                "sha256:24469d9d33217ffd0ce4582dfcf2a76671af115663a95328f63c99ec7ece61a4",
-                "sha256:2deab5ec05d83ddcf9b0916319674d3dae88b0e7ee18f8962642d3cde0496568",
-                "sha256:494106e9cd945c2cadfce5374fa44c94cfadf01d4566a3b13bb487d2e6c7959e",
-                "sha256:4c702855cd3174666ef0d2d13dcc879090aa9c6c38f5578896407a7028f75b9f",
-                "sha256:52f769ecb4ef39865719aedc67b4b7eae167bafa48dbc2a26dd36fa56460507f",
-                "sha256:5c49c9e8fb26a567a2b3fa0343c89f5d325447956cc2fc7231c943b29a973712",
-                "sha256:684993ff6f67000a56454b41bdc7e015429732d65a52d06385b6e9de6181c71e",
-                "sha256:6fbbbb8aab4053fa018984bb0e95a16faeb051dd8cca15add2a27e267ba02b58",
-                "sha256:8982c19bb90a4fa2aad3d635c6d71814e38b643649b4000a8419f8691f20ac44",
-                "sha256:9511416e85e449fe1de73f7f99b21b3aa04fba4c4d335d30c486ba3756e3a2a6",
-                "sha256:97199a13b772e74cdcdb03760c32109c808aff7cd49c29e9cf4b7754bb725d1d",
-                "sha256:a776bae1629c8d7198396fd93ec0265f8dd2341c553dc32b976168aaf0e6a636",
-                "sha256:aa94d617a4cd4cdf4af9b5af65100c036bce22280ebb15d8b5262e8273ebc6ba",
-                "sha256:b17d83b3d1610e571fedac21b2eb36b816654d6f7496004d6a0d32f99d1d8120",
-                "sha256:d73e3a96c38173e0aa5646c31bf8473bc3564837977dd480f5cbeacf1d7ef3a3",
-                "sha256:d91bc9f535599bed58f6d2e21a2724cb0c3895bf41c6403fe881391d29096f1d",
-                "sha256:ef216d13ac8d24d9cd851776662f75f8d29c9f2d05cdcc2d34a18d32463a9b0b",
-                "sha256:f6a5a85beb33e57998dc605b9dbe7deaa806385fdf5c4810fb849fcd04640c81",
-                "sha256:f92556f94e476c1b616e6daec5f7ddded2c082efa7cee7f31c7aeda615906ed8"
+                "sha256:0a817b961b46894c5ca8a66b599c745b9a3d9f822725221f0e0fe49dc043a3a3",
+                "sha256:2d87cdcb378d3cfed944dac30596da1968f88fb96d7fc34fdae30a99054b2e31",
+                "sha256:30ee1eb3ebe1644d1c3f183d115a8c04e4e603ed6ce8e394ed39eea4a98469ac",
+                "sha256:391432971a66cfaf94b21c24ab465a4cc3e8bf4a939c1ca5c3e3a6e0abebdbcf",
+                "sha256:39bdf8e70eee6b1c7b289ec6e5d84d49a6bfa11f8b8646b5b3dfe41219153316",
+                "sha256:4caa4b893d8fad33cf1964d3e51842cd78ba87401ab1d2e44556826df849a8ca",
+                "sha256:53e5c1dc3d7a953de055d77bef2ff607ceef7a2aac0353b5d630ab67f7423638",
+                "sha256:596f3cd67e1b950bc372c33f1a28a0692080625592ea6392987dba7f09f17a94",
+                "sha256:5d59a9d55027a8b88fd9fd2826c4392bd487d74bf628bb9d39beecc62a644c12",
+                "sha256:6c0c021f35b421ebf5976abf2daacc47e235f8b6082d3396a2fe3ccd537ab173",
+                "sha256:73bc2d3f2444bcfeac67dd130ff2ea598ea5f20b40e36d19821b4df8c9c5037b",
+                "sha256:74d6c7e80609c0f4c2434b97b80c7f8fdfaa072ca4baab7e239a15d6d70ed73a",
+                "sha256:7be0eec337359c155df191d6ae00a5e8bbb63933883f4f5dffc439dac5348c3f",
+                "sha256:94ae132f0e40fe48f310bba63f477f14a43116f05ddb69d6fa31e93f05848ae2",
+                "sha256:bb5829d027ff82aa872d76158919045a7c1e91fbf241aec32cb07956e9ebd3c9",
+                "sha256:ca238ceb7ba0bdf6ce88c1b74a87bffcee5afbfa1e41e173b1ceb095b39add46",
+                "sha256:ca28641954f767f9822c24e927ad894d45d5a1e501767599647259cbf030b903",
+                "sha256:e0344c14c9cb89e76eb6a060e67980c9e35b3f36691e15e1b7a9e58a0a6c6dc3",
+                "sha256:ebc15b1c22e55c4d5566e3ca4db8689470a0ca2babef8e3a9ee057a8b82ce4b1",
+                "sha256:ec63da4e7e4a5f924b90af42eddf20b698a70e58d86a72d943857c4c6045b3ee"
             ],
             "markers": "python_version >= '3.6'",
-            "version": "==36.0.0"
+            "version": "==36.0.1"
         },
         "deprecated": {
             "hashes": [
@@ -147,11 +146,11 @@
         },
         "django": {
             "hashes": [
-                "sha256:51284300f1522ffcdb07ccbdf676a307c6678659e1284f0618e5a774127a6a08",
-                "sha256:e22c9266da3eec7827737cde57694d7db801fedac938d252bf27377cec06ed1b"
+                "sha256:074e8818b4b40acdc2369e67dcd6555d558329785408dcd25340ee98f1f1d5c4",
+                "sha256:df6f5eb3c797b27c096d61494507b7634526d4ce8d7c8ca1e57a4fb19c0738a3"
             ],
             "index": "pypi",
-            "version": "==3.2.9"
+            "version": "==3.2.10"
         },
         "django-cors-headers": {
             "hashes": [
@@ -304,10 +303,10 @@
         },
         "phonenumbers": {
             "hashes": [
-                "sha256:3cda1d1cea9a6801babf825e6c0f6a9776ea6d8a68b81b256178f8e5aa813344",
-                "sha256:95c8a30157323a73a4f9207792e3ed69b626b4c74d8fc44064f25e7fb56cfc94"
+                "sha256:0f7745e1f108654db347d885e814cbb5f225b8c5f5ce336024b193c79291ddaa",
+                "sha256:d088a5c85adcd29cd9ff66ec43c4b08dccae3a4e7b046bb43f651e75d4c51165"
             ],
-            "version": "==8.12.38"
+            "version": "==8.12.39"
         },
         "psycopg2": {
             "hashes": [
@@ -629,11 +628,11 @@
         },
         "django": {
             "hashes": [
-                "sha256:51284300f1522ffcdb07ccbdf676a307c6678659e1284f0618e5a774127a6a08",
-                "sha256:e22c9266da3eec7827737cde57694d7db801fedac938d252bf27377cec06ed1b"
+                "sha256:074e8818b4b40acdc2369e67dcd6555d558329785408dcd25340ee98f1f1d5c4",
+                "sha256:df6f5eb3c797b27c096d61494507b7634526d4ce8d7c8ca1e57a4fb19c0738a3"
             ],
             "index": "pypi",
-            "version": "==3.2.9"
+            "version": "==3.2.10"
         },
         "django-debug-toolbar": {
             "hashes": [
@@ -743,13 +742,6 @@
             "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==2.4.0"
         },
-        "pytz": {
-            "hashes": [
-                "sha256:3672058bc3453457b622aab7a1c3bfd5ab0bdae451512f6cf25f64ed37f5b87c",
-                "sha256:acad2d8b20a1af07d4e4c9d2e9285c5ed9104354062f275f3fcd88dcef4f1326"
-            ],
-            "version": "==2021.3"
-        },
         "regex": {
             "hashes": [
                 "sha256:0416f7399e918c4b0e074a0f66e5191077ee2ca32a0f99d4c187a62beb47aa05",
@@ -862,11 +854,11 @@
         },
         "tomli": {
             "hashes": [
-                "sha256:c6ce0015eb38820eaf32b5db832dbc26deb3dd427bd5f6556cf0acac2c214fee",
-                "sha256:f04066f68f5554911363063a30b108d2b5a5b1a010aa8b6132af78489fe3aade"
+                "sha256:05b6166bff487dc068d322585c7ea4ef78deed501cc124060e0f238e89a9231f",
+                "sha256:e3069e4be3ead9668e21cb9b074cd948f7b3113fd9c8bba083f48247aab8b11c"
             ],
             "markers": "python_version >= '3.6'",
-            "version": "==1.2.2"
+            "version": "==1.2.3"
         },
         "typing-extensions": {
             "hashes": [