diff --git a/Pipfile b/Pipfile
index 0b9fafe..69e45da 100644
--- a/Pipfile
+++ b/Pipfile
@@ -14,4 +14,4 @@ django-markdownify = "*"
 [dev-packages]
 
 [requires]
-python_version = "3.9"
+python_version = "3.7"
diff --git a/Pipfile.lock b/Pipfile.lock
index 555ba56..ad7ff3a 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -1,11 +1,11 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "cfcee52e11d5622d49f83f1195e0de50ee5c8508cd57d328d315f2a29142957d"
+            "sha256": "12f0aca882d9e4e44b1ac75deea925239fc76996cc263f0f5d923de132bb757a"
         },
         "pipfile-spec": 6,
         "requires": {
-            "python_version": "3.9"
+            "python_version": "3.7"
         },
         "sources": [
             {
@@ -18,43 +18,43 @@
     "default": {
         "asgiref": {
             "hashes": [
-                "sha256:5ee950735509d04eb673bd7f7120f8fa1c9e2df495394992c73234d526907e17",
-                "sha256:7162a3cb30ab0609f1a4c95938fd73e8604f63bdba516a7f7d64b83ff09478f0"
+                "sha256:92906c611ce6c967347bbfea733f13d6313901d54dcca88195eaeb52b2a8e8ee",
+                "sha256:d1216dfbdfb63826470995d31caed36225dcaf34f182e0fa257a4dd9e86f1b78"
             ],
-            "markers": "python_version >= '3.5'",
-            "version": "==3.3.1"
+            "markers": "python_version >= '3.6'",
+            "version": "==3.3.4"
         },
         "bleach": {
             "hashes": [
-                "sha256:52b5919b81842b1854196eaae5ca29679a2f2e378905c346d3ca8227c2c66080",
-                "sha256:9f8ccbeb6183c6e6cddea37592dfb0167485c1e3b13b3363bc325aa8bda3adbd"
+                "sha256:6123ddc1052673e52bab52cdc955bcb57a015264a1c57d37bea2f6b817af0125",
+                "sha256:98b3170739e5e83dd9dc19633f074727ad848cbedb6026708c8ac2d3b697a433"
             ],
             "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
-            "version": "==3.2.1"
+            "version": "==3.3.0"
         },
         "django": {
             "hashes": [
-                "sha256:5c866205f15e7a7123f1eec6ab939d22d5bde1416635cab259684af66d8e48a2",
-                "sha256:edb10b5c45e7e9c0fb1dc00b76ec7449aca258a39ffd613dbd078c51d19c9f03"
+                "sha256:13ac78dbfd189532cad8f383a27e58e18b3d33f80009ceb476d7fcbfc5dcebd8",
+                "sha256:7e0a1393d18c16b503663752a8b6790880c5084412618990ce8a81cc908b4962"
             ],
             "index": "pypi",
-            "version": "==3.1.4"
+            "version": "==3.2.3"
         },
         "django-auth-ldap": {
             "hashes": [
-                "sha256:0ed2d88d81c39be915a9ab53b97ec0a33a3d16055518ab4c9bcffe8236d40370",
-                "sha256:11af1773b08613339d2c3a0cec1308a4d563518f17b1719c3759994d0b4d04bf"
+                "sha256:2d869955da8a0c9a4448671bd9826b9f87458f6a9fc20278e84de8a81200a2be",
+                "sha256:60fcbfc3141c99c3c49d3ccd7311a3992a231c319d94b6d2c143968f63676676"
             ],
             "index": "pypi",
-            "version": "==2.2.0"
+            "version": "==2.4.0"
         },
         "django-markdownify": {
             "hashes": [
-                "sha256:5460fc41db2da02c57e2f49f55258aa71a74af48c21b7989985b0a860069a954",
-                "sha256:c9406e1187c68f2ad9e251bf7b586dd4c9309021fafce2c83be99584cb130173"
+                "sha256:2d3e460a34fb4498c8f7a054e7c6d4d5f67cc0792f86331b2af2dc27f776b65c",
+                "sha256:b060eb7869f493f7bff390ba2f7a81b981dd6c5f163dbb95423b6cf714ca4d23"
             ],
             "index": "pypi",
-            "version": "==0.8.1"
+            "version": "==0.9.0"
         },
         "django-markdownx": {
             "hashes": [
@@ -72,55 +72,68 @@
             "index": "pypi",
             "version": "==1.4.8"
         },
+        "importlib-metadata": {
+            "hashes": [
+                "sha256:8c501196e49fb9df5df43833bdb1e4328f64847763ec8a50703148b73784d581",
+                "sha256:d7eb1dea6d6a6086f8be21784cc9e3bcfa55872b52309bc5fad53a8ea444465d"
+            ],
+            "markers": "python_version < '3.8'",
+            "version": "==4.0.1"
+        },
         "markdown": {
             "hashes": [
-                "sha256:5d9f2b5ca24bc4c7a390d22323ca4bad200368612b5aaa7796babf971d2b2f18",
-                "sha256:c109c15b7dc20a9ac454c9e6025927d44460b85bd039da028d85e2b6d0bcc328"
+                "sha256:31b5b491868dcc87d6c24b7e3d19a0d730d59d3e46f4eea6430a321bed387a49",
+                "sha256:96c3ba1261de2f7547b46a00ea8463832c921d3f9d6aba3f255a6f71386db20c"
             ],
             "markers": "python_version >= '3.6'",
-            "version": "==3.3.3"
+            "version": "==3.3.4"
         },
         "packaging": {
             "hashes": [
-                "sha256:24e0da08660a87484d1602c30bb4902d74816b6985b93de36926f5bc95741858",
-                "sha256:78598185a7008a470d64526a8059de9aaa449238f280fc9eb6b13ba6c4109093"
+                "sha256:5b327ac1320dc863dca72f4514ecc086f31186744b84a230374cc1fd776feae5",
+                "sha256:67714da7f7bc052e064859c05c595155bd1ee9f69f76557e21f051443c20947a"
             ],
             "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
-            "version": "==20.8"
+            "version": "==20.9"
         },
         "pillow": {
             "hashes": [
-                "sha256:006de60d7580d81f4a1a7e9f0173dc90a932e3905cc4d47ea909bc946302311a",
-                "sha256:0a2e8d03787ec7ad71dc18aec9367c946ef8ef50e1e78c71f743bc3a770f9fae",
-                "sha256:0eeeae397e5a79dc088d8297a4c2c6f901f8fb30db47795113a4a605d0f1e5ce",
-                "sha256:11c5c6e9b02c9dac08af04f093eb5a2f84857df70a7d4a6a6ad461aca803fb9e",
-                "sha256:2fb113757a369a6cdb189f8df3226e995acfed0a8919a72416626af1a0a71140",
-                "sha256:4b0ef2470c4979e345e4e0cc1bbac65fda11d0d7b789dbac035e4c6ce3f98adb",
-                "sha256:59e903ca800c8cfd1ebe482349ec7c35687b95e98cefae213e271c8c7fffa021",
-                "sha256:5abd653a23c35d980b332bc0431d39663b1709d64142e3652890df4c9b6970f6",
-                "sha256:5f9403af9c790cc18411ea398a6950ee2def2a830ad0cfe6dc9122e6d528b302",
-                "sha256:6b4a8fd632b4ebee28282a9fef4c341835a1aa8671e2770b6f89adc8e8c2703c",
-                "sha256:6c1aca8231625115104a06e4389fcd9ec88f0c9befbabd80dc206c35561be271",
-                "sha256:795e91a60f291e75de2e20e6bdd67770f793c8605b553cb6e4387ce0cb302e09",
-                "sha256:7ba0ba61252ab23052e642abdb17fd08fdcfdbbf3b74c969a30c58ac1ade7cd3",
-                "sha256:7c9401e68730d6c4245b8e361d3d13e1035cbc94db86b49dc7da8bec235d0015",
-                "sha256:81f812d8f5e8a09b246515fac141e9d10113229bc33ea073fec11403b016bcf3",
-                "sha256:895d54c0ddc78a478c80f9c438579ac15f3e27bf442c2a9aa74d41d0e4d12544",
-                "sha256:8de332053707c80963b589b22f8e0229f1be1f3ca862a932c1bcd48dafb18dd8",
-                "sha256:92c882b70a40c79de9f5294dc99390671e07fc0b0113d472cbea3fde15db1792",
-                "sha256:95edb1ed513e68bddc2aee3de66ceaf743590bf16c023fb9977adc4be15bd3f0",
-                "sha256:b63d4ff734263ae4ce6593798bcfee6dbfb00523c82753a3a03cbc05555a9cc3",
-                "sha256:bd7bf289e05470b1bc74889d1466d9ad4a56d201f24397557b6f65c24a6844b8",
-                "sha256:cc3ea6b23954da84dbee8025c616040d9aa5eaf34ea6895a0a762ee9d3e12e11",
-                "sha256:cc9ec588c6ef3a1325fa032ec14d97b7309db493782ea8c304666fb10c3bd9a7",
-                "sha256:d3d07c86d4efa1facdf32aa878bd508c0dc4f87c48125cc16b937baa4e5b5e11",
-                "sha256:d8a96747df78cda35980905bf26e72960cba6d355ace4780d4bdde3b217cdf1e",
-                "sha256:e38d58d9138ef972fceb7aeec4be02e3f01d383723965bfcef14d174c8ccd039",
-                "sha256:eb472586374dc66b31e36e14720747595c2b265ae962987261f044e5cce644b5",
-                "sha256:fbd922f702582cb0d71ef94442bfca57624352622d75e3be7a1e7e9360b07e72"
+                "sha256:01425106e4e8cee195a411f729cff2a7d61813b0b11737c12bd5991f5f14bcd5",
+                "sha256:031a6c88c77d08aab84fecc05c3cde8414cd6f8406f4d2b16fed1e97634cc8a4",
+                "sha256:083781abd261bdabf090ad07bb69f8f5599943ddb539d64497ed021b2a67e5a9",
+                "sha256:0d19d70ee7c2ba97631bae1e7d4725cdb2ecf238178096e8c82ee481e189168a",
+                "sha256:0e04d61f0064b545b989126197930807c86bcbd4534d39168f4aa5fda39bb8f9",
+                "sha256:12e5e7471f9b637762453da74e390e56cc43e486a88289995c1f4c1dc0bfe727",
+                "sha256:22fd0f42ad15dfdde6c581347eaa4adb9a6fc4b865f90b23378aa7914895e120",
+                "sha256:238c197fc275b475e87c1453b05b467d2d02c2915fdfdd4af126145ff2e4610c",
+                "sha256:3b570f84a6161cf8865c4e08adf629441f56e32f180f7aa4ccbd2e0a5a02cba2",
+                "sha256:463822e2f0d81459e113372a168f2ff59723e78528f91f0bd25680ac185cf797",
+                "sha256:4d98abdd6b1e3bf1a1cbb14c3895226816e666749ac040c4e2554231068c639b",
+                "sha256:5afe6b237a0b81bd54b53f835a153770802f164c5570bab5e005aad693dab87f",
+                "sha256:5b70110acb39f3aff6b74cf09bb4169b167e2660dabc304c1e25b6555fa781ef",
+                "sha256:5cbf3e3b1014dddc45496e8cf38b9f099c95a326275885199f427825c6522232",
+                "sha256:624b977355cde8b065f6d51b98497d6cd5fbdd4f36405f7a8790e3376125e2bb",
+                "sha256:63728564c1410d99e6d1ae8e3b810fe012bc440952168af0a2877e8ff5ab96b9",
+                "sha256:66cc56579fd91f517290ab02c51e3a80f581aba45fd924fcdee01fa06e635812",
+                "sha256:6c32cc3145928c4305d142ebec682419a6c0a8ce9e33db900027ddca1ec39178",
+                "sha256:8bb1e155a74e1bfbacd84555ea62fa21c58e0b4e7e6b20e4447b8d07990ac78b",
+                "sha256:95d5ef984eff897850f3a83883363da64aae1000e79cb3c321915468e8c6add5",
+                "sha256:a013cbe25d20c2e0c4e85a9daf438f85121a4d0344ddc76e33fd7e3965d9af4b",
+                "sha256:a787ab10d7bb5494e5f76536ac460741788f1fbce851068d73a87ca7c35fc3e1",
+                "sha256:a7d5e9fad90eff8f6f6106d3b98b553a88b6f976e51fce287192a5d2d5363713",
+                "sha256:aac00e4bc94d1b7813fe882c28990c1bc2f9d0e1aa765a5f2b516e8a6a16a9e4",
+                "sha256:b91c36492a4bbb1ee855b7d16fe51379e5f96b85692dc8210831fbb24c43e484",
+                "sha256:c03c07ed32c5324939b19e36ae5f75c660c81461e312a41aea30acdd46f93a7c",
+                "sha256:c5236606e8570542ed424849f7852a0ff0bce2c4c8d0ba05cc202a5a9c97dee9",
+                "sha256:c6b39294464b03457f9064e98c124e09008b35a62e3189d3513e5148611c9388",
+                "sha256:cb7a09e173903541fa888ba010c345893cd9fc1b5891aaf060f6ca77b6a3722d",
+                "sha256:d68cb92c408261f806b15923834203f024110a2e2872ecb0bd2a110f89d3c602",
+                "sha256:dc38f57d8f20f06dd7c3161c59ca2c86893632623f33a42d592f097b00f720a9",
+                "sha256:e98eca29a05913e82177b3ba3d198b1728e164869c613d76d0de4bde6768a50e",
+                "sha256:f217c3954ce5fd88303fc0c317af55d5e0204106d86dea17eb8205700d47dec2"
             ],
             "markers": "python_version >= '3.6'",
-            "version": "==8.0.1"
+            "version": "==8.2.0"
         },
         "pyasn1": {
             "hashes": [
@@ -183,18 +196,18 @@
         },
         "pytz": {
             "hashes": [
-                "sha256:3e6b7dd2d1e0a59084bcee14a17af60c5c562cdc16d828e8eba2e683d3a7e268",
-                "sha256:5c55e189b682d420be27c6995ba6edce0c0a77dd67bfbe2ae6607134d5851ffd"
+                "sha256:83a4a90894bf38e243cf052c8b58f381bfe9a7a483f6a9cab140bc7f702ac4da",
+                "sha256:eb10ce3e7736052ed3623d49975ce333bcd712c7bb19a58b9e2089d4057d0798"
             ],
-            "version": "==2020.4"
+            "version": "==2021.1"
         },
         "six": {
             "hashes": [
-                "sha256:30639c035cdb23534cd4aa2dd52c3bf48f06e5f4a941509c8bafd8ce11080259",
-                "sha256:8b74bedcbbbaca38ff6d7491d76f2b06b3592611af620f8426e82dddb04a5ced"
+                "sha256:1e61c37477a1626458e36f7b1d82aa5c9b094fa4802892072e49de9c60c4c926",
+                "sha256:8abb2f1d86890a2dfb989f9a77cfcfd3e47c2a354b01111771326f8aa26e0254"
             ],
             "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
-            "version": "==1.15.0"
+            "version": "==1.16.0"
         },
         "sqlparse": {
             "hashes": [
@@ -204,12 +217,29 @@
             "markers": "python_version >= '3.5'",
             "version": "==0.4.1"
         },
+        "typing-extensions": {
+            "hashes": [
+                "sha256:0ac0f89795dd19de6b97debb0c6af1c70987fd80a2d62d1958f7e56fcc31b497",
+                "sha256:50b6f157849174217d0656f99dc82fe932884fb250826c18350e159ec6cdf342",
+                "sha256:779383f6086d90c99ae41cf0ff39aac8a7937a9283ce0a414e5dd782f4c94a84"
+            ],
+            "markers": "python_version < '3.8'",
+            "version": "==3.10.0.0"
+        },
         "webencodings": {
             "hashes": [
                 "sha256:a0af1213f3c2226497a97e2b3aa01a7e4bee4f403f95be16fc9acd2947514a78",
                 "sha256:b36a1c245f2d304965eb4e0a82848379241dc04b865afcc4aab16748587e1923"
             ],
             "version": "==0.5.1"
+        },
+        "zipp": {
+            "hashes": [
+                "sha256:3607921face881ba3e026887d8150cca609d517579abe052ac81fc5aeffdbd76",
+                "sha256:51cb66cc54621609dd593d1787f286ee42a5c0adbb4b29abea5a63edc3e03098"
+            ],
+            "markers": "python_version >= '3.6'",
+            "version": "==3.4.1"
         }
     },
     "develop": {}