Stick to Django 1.11 LTS

Pipfile

@@ -11,12 +11,12 @@ name = "pypi"
 
 [packages]
 
-django = "*"
+Django = ">=1.11,<1.12"
 dateutils = "*"
 celery = "==3.1.25"
-sqlalchemy = "*"
+SQLAlchemy = "*"
 "psycopg2" = "*"
-sqlalchemy-utils = "*"
+SQLAlchemy-Utils = "*"
 django-celery = "*"
 djangorestframework = "*"
 djangorestframework-jwt = "*"

Pipfile.lock

 {
     "_meta": {
         "hash": {
-            "sha256": "940ae88531a8fa6b74a92caa89beaa602ca363036fcec74a1e0f1817c3456b99"
+            "sha256": "812bbbd579361fcd66f99a5fe8a453e712b008fcabd276b4cc803c955a3fc14c"
         },
         "host-environment-markers": {
             "implementation_name": "cpython",
@@ -77,10 +77,10 @@
         },
         "django": {
             "hashes": [
-                "sha256:7ab6a9c798a5f9f359ee6da3677211f883fb02ef32cebe9b29751eb7a871febf",
-                "sha256:c3b42ca1efa1c0a129a9e863134cc3fe705c651dea3a04a7998019e522af0c60"
+                "sha256:75ce405d60f092f6adf904058d023eeea0e6d380f8d9c36134bac73da736023d",
+                "sha256:8918e392530d8fc6965a56af6504229e7924c27265893f3949aa0529cd1d4b99"
             ],
-            "version": "==1.11.6"
+            "version": "==1.11.7"
         },
         "django-celery": {
             "hashes": [