diff --git a/Pipfile.lock b/Pipfile.lock
index 5a742e4..f8ed8b5 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -41,11 +41,11 @@
         },
         "djangorestframework": {
             "hashes": [
-                "sha256:42979bd5441bb4d8fd69d0f385024a114c3cae7df0f110600b718751250f6929",
-                "sha256:aedb48010ebfab9651aaab1df5fd3b4848eb4182afc909852a2110c24f89a359"
+                "sha256:5cc724dc4b076463497837269107e1995b1fbc917468d1b92d188fd1af9ea789",
+                "sha256:a5967b68a04e0d97d10f4df228e30f5a2d82ba63b9d03e1759f84993b7bf1b53"
             ],
             "index": "pypi",
-            "version": "==3.10.2"
+            "version": "==3.11.2"
         },
         "drf-nested-routers": {
             "hashes": [
@@ -74,24 +74,24 @@
         },
         "pytz": {
             "hashes": [
-                "sha256:26c0b32e437e54a18161324a2fca3c4b9846b74a8dccddd843113109e1116b32",
-                "sha256:c894d57500a4cd2d5c71114aaab77dbab5eabd9022308ce5ac9bb93a60a6f0c7"
+                "sha256:83a4a90894bf38e243cf052c8b58f381bfe9a7a483f6a9cab140bc7f702ac4da",
+                "sha256:eb10ce3e7736052ed3623d49975ce333bcd712c7bb19a58b9e2089d4057d0798"
             ],
-            "version": "==2019.2"
+            "version": "==2021.1"
         },
         "six": {
             "hashes": [
-                "sha256:3350809f0555b11f552448330d0b52d5f24c91a322ea4a15ef22629740f3761c",
-                "sha256:d16a0141ec1a18405cd4ce8b4613101da75da0e9a7aec5bdd4fa804d0e0eba73"
+                "sha256:30639c035cdb23534cd4aa2dd52c3bf48f06e5f4a941509c8bafd8ce11080259",
+                "sha256:8b74bedcbbbaca38ff6d7491d76f2b06b3592611af620f8426e82dddb04a5ced"
             ],
-            "version": "==1.12.0"
+            "version": "==1.15.0"
         },
         "sqlparse": {
             "hashes": [
-                "sha256:40afe6b8d4b1117e7dff5504d7a8ce07d9a1b15aeeade8a2d10f130a834f8177",
-                "sha256:7c3dca29c022744e95b547e867cee89f4fce4373f3549ccd8797d8eb52cdb873"
+                "sha256:017cde379adbd6a1f15a61873f43e8274179378e95ef3fede90b5aa64d304ed0",
+                "sha256:0f91fd2e829c44362cbcfab3e9ae12e22badaa8a29ad5ff599f9ec109f0454e8"
             ],
-            "version": "==0.3.0"
+            "version": "==0.4.1"
         }
     },
     "develop": {}