Remove exact versions from Pipfile:

Pipfile

@@ -4,76 +4,76 @@ verify_ssl = true
 name = "pypi"
 
 [packages]
-coveralls = "==1.5.1"
+coveralls = "*"
-dateparser = "==0.7.0"
+dateparser = "*"
-django-cors-headers = "==2.4.0"
+django-cors-headers = "*"
-django-crispy-forms = "==1.7.2"
+django-crispy-forms = "*"
-django-extensions = "==2.1.4"
+django-extensions = "*"
-django-filter = "==2.1.0"
+django-filter = "*"
-djangorestframework = "==3.9.1"
+djangorestframework = "*"
-factory-boy = "==2.11.1"
+factory-boy = "*"
-filemagic = "==1.6"
+filemagic = "*"
-fuzzywuzzy = {extras = ["speedup"],version = "==0.15.0"}
+fuzzywuzzy = {extras = ["speedup"], version = "==0.15.0"}
-gunicorn = "==19.9.0"
+gunicorn = "*"
-langdetect = "==1.0.7"
+langdetect = "*"
-pdftotext = "==2.1.1"
+pdftotext = "*"
-pyocr = "==0.5.3"
+pyocr = "*"
-python-dateutil = "==2.7.5"
+python-dateutil = "*"
-python-dotenv = "==0.10.1"
+python-dotenv = "*"
-python-gnupg = "==0.4.4"
+python-gnupg = "*"
-pytz = "==2018.9"
+pytz = "*"
-tox = "==3.7.0"
+tox = "*"
-pycodestyle = "==2.4.0"
+pycodestyle = "*"
-pytest = "==4.1.1"
+pytest = "*"
-pytest-cov = "==2.6.1"
+pytest-cov = "*"
-pytest-django = "==3.4.5"
+pytest-django = "*"
-pytest-sugar = "==0.9.2"
+pytest-sugar = "*"
-pytest-env = "==0.6.2"
+pytest-env = "*"
-pytest-xdist = "==1.26.0"
+pytest-xdist = "*"
-psycopg2 = "==2.7.7"
+psycopg2 = "*"
-djangoql = "==0.12.3"
+djangoql = "*"
-whitenoise = "==4.1.3"
+whitenoise = "*"
-alabaster = "==0.7.12"
+alabaster = "*"
-apipkg = "==1.5"
+apipkg = "*"
-atomicwrites = "==1.2.1"
+atomicwrites = "*"
-attrs = "==18.2.0"
+attrs = "*"
-certifi = "==2018.11.29"
+certifi = "*"
-chardet = "==3.0.4"
+chardet = "*"
-coverage = "==4.5.2"
+coverage = "*"
-docopt = "==0.6.2"
+docopt = "*"
-docutils = "==0.14"
+docutils = "*"
-execnet = "==1.5.0"
+execnet = "*"
-filelock = "==3.0.10"
+filelock = "*"
-idna = "==2.8"
+idna = "*"
-imagesize = "==1.1.0"
+imagesize = "*"
-more-itertools = "==5.0.0"
+more-itertools = "*"
-pluggy = "==0.8.1"
+pluggy = "*"
-ply = "==3.11"
+ply = "*"
-py = "==1.7.0"
+py = "*"
-pyparsing = "==2.3.1"
+pyparsing = "*"
-pytest-forked = "==1.0.1"
+pytest-forked = "*"
-regex = "==2019.1.24"
+regex = "*"
-requests = "==2.21.0"
+requests = "*"
-six = "==1.12.0"
+six = "*"
-snowballstemmer = "==1.2.1"
+snowballstemmer = "*"
-sphinxcontrib-websupport = "==1.1.0"
+sphinxcontrib-websupport = "*"
-termcolor = "==1.1.0"
+termcolor = "*"
-text-unidecode = "==1.2"
+text-unidecode = "*"
-toml = "==0.10.0"
+toml = "*"
-tzlocal = "==1.5.1"
+tzlocal = "*"
-urllib3 = "==1.24.1"
+urllib3 = "*"
-virtualenv = "==16.3.0"
+virtualenv = "*"
-Django = "==2.0.10"
+Django = "<2.1,>=2.0"
-Pillow = "==5.4.1"
+Pillow = "*"
-inotify_simple = "==1.1.8"
+inotify_simple = "*"
-Sphinx = "==1.8.3"
+Sphinx = "*"
-Brotli = "==1.0.7"
+Brotli = "*"
-Babel = "==2.6.0"
+Babel = "*"
-Faker = "==1.0.2"
+Faker = "*"
-Jinja2 = "==2.10"
+Jinja2 = "*"
-MarkupSafe = "==1.1.0"
+MarkupSafe = "*"
-Pygments = "==2.3.1"
+Pygments = "*"
-python-Levenshtein = "==0.12.0"
+python-Levenshtein = "*"
 
 [dev-packages]
 ipython = "*"