diff --git a/backend/Pipfile.lock b/backend/Pipfile.lock
index 29c37a4..58814ed 100644
--- a/backend/Pipfile.lock
+++ b/backend/Pipfile.lock
@@ -116,11 +116,11 @@
         },
         "charset-normalizer": {
             "hashes": [
-                "sha256:735e240d9a8506778cd7a453d97e817e536bb1fc29f4f6961ce297b9c7a917b0",
-                "sha256:83fcdeb225499d6344c8f7f34684c2981270beacc32ede2e669e94f7fa544405"
+                "sha256:1eecaa09422db5be9e29d7fc65664e6c33bd06f9ced7838578ba40d58bdf3721",
+                "sha256:b0b883e8e874edfdece9c28f314e3dd5badf067342e42fb162203335ae61aa2c"
             ],
             "markers": "python_version >= '3'",
-            "version": "==2.0.8"
+            "version": "==2.0.9"
         },
         "constantly": {
             "hashes": [
@@ -174,11 +174,11 @@
         },
         "django": {
             "hashes": [
-                "sha256:51284300f1522ffcdb07ccbdf676a307c6678659e1284f0618e5a774127a6a08",
-                "sha256:e22c9266da3eec7827737cde57694d7db801fedac938d252bf27377cec06ed1b"
+                "sha256:59304646ebc6a77b9b6a59adc67d51ecb03c5e3d63ed1f14c909cdfda84e8010",
+                "sha256:d5a8a14da819a8b9237ee4d8c78dfe056ff6e8a7511987be627192225113ee75"
             ],
             "index": "pypi",
-            "version": "==3.2.9"
+            "version": "==4.0"
         },
         "django-cockroachdb": {
             "hashes": [
@@ -216,7 +216,7 @@
                 "sha256:84d9dd047ffa80596e0f246e2eab0b391788b0503584e8945f2368256d2735ff",
                 "sha256:9d643ff0a55b762d5cdb124b8eaa99c66322e2157b69160bc32796e824360e6d"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
+            "markers": "python_version >= '3'",
             "version": "==3.3"
         },
         "incremental": {
@@ -320,13 +320,6 @@
             "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
             "version": "==21.0.0"
         },
-        "pytz": {
-            "hashes": [
-                "sha256:3672058bc3453457b622aab7a1c3bfd5ab0bdae451512f6cf25f64ed37f5b87c",
-                "sha256:acad2d8b20a1af07d4e4c9d2e9285c5ed9104354062f275f3fcd88dcef4f1326"
-            ],
-            "version": "==2021.3"
-        },
         "requests": {
             "hashes": [
                 "sha256:6c1246513ecd5ecd4528a0906f910e8f0f9c6b8ec72030dc9fd154dc1a6efd24",
@@ -342,6 +335,14 @@
             ],
             "version": "==21.1.0"
         },
+        "setuptools": {
+            "hashes": [
+                "sha256:6d10741ff20b89cd8c6a536ee9dc90d3002dec0226c78fb98605bfb9ef8a7adf",
+                "sha256:d144f85102f999444d06f9c0e8c737fd0194f10f2f7e5fdb77573f6e2fa4fad0"
+            ],
+            "markers": "python_version >= '3.6'",
+            "version": "==59.5.0"
+        },
         "six": {
             "hashes": [
                 "sha256:1e61c37477a1626458e36f7b1d82aa5c9b094fa4802892072e49de9c60c4c926",
@@ -379,11 +380,11 @@
         },
         "typing-extensions": {
             "hashes": [
-                "sha256:2cdf80e4e04866a9b3689a51869016d36db0814d84b8d8a568d22781d45d27ed",
-                "sha256:829704698b22e13ec9eaf959122315eabb370b0884400e9818334d8b677023d9"
+                "sha256:4ca091dea149f945ec56afb48dae714f21e8692ef22a395223bcd328961b6a0e",
+                "sha256:7f001e5ac290a0c0401508864c7ec868be4e701886d5b573a9528ed3973d9d3b"
             ],
             "markers": "python_version >= '3.6'",
-            "version": "==4.0.0"
+            "version": "==4.0.1"
         },
         "urllib3": {
             "hashes": [