diff --git a/.gitignore b/.gitignore
index 79e036f2..4aba05bf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,7 +9,8 @@ backups/
 *.log
 *.log.*
 
-# Python runtime and setup
+# Python runtime, setup and testing
+.mypy_cache/
 __pycache__
 env/
 venv/
diff --git a/lowfat/context.py b/lowfat/context.py
index 10b4f99e..7bf5fe44 100644
--- a/lowfat/context.py
+++ b/lowfat/context.py
@@ -1,27 +1,32 @@
-"""Context for template"""
+"""Context processors to add data to template context."""
 from django.contrib.sites.models import Site
 from django.utils import timezone
 
 from constance import config
 
+
 def site(request):  # pylint: disable=unused-argument
+    # type: (...) -> dict
     """Return the site."""
     return {
         'site': Site.objects.get_current()
     }
 
+
 def organisation(request):  # pylint: disable=unused-argument
+    # type: (...) -> dict
     """Return the organisation."""
     return {
         'organisation_name': config.ORGANISATION_NAME,
         'organisation_website': config.ORGANISATION_WEBSITE,
     }
 
+
 def maintenance(request):  # pylint: disable=unused-argument
-    """Return true if default maintancance time."""
+    # type: (...) -> dict
+    """Return whether current time is within scheduled maintenance period."""
     now = timezone.now()
 
-    if now.weekday() == config.MAINTENANCE_DAY and now.hour == config.MAINTENANCE_HOUR:
-        return {"is_maintenance_time": True}
-
-    return {"is_maintenance_time": False}
+    return {
+        'is_maintenance_time': now.weekday() == config.MAINTENANCE_DAY and now.hour == config.MAINTENANCE_HOUR
+    }
diff --git a/lowfat/settings.py b/lowfat/settings.py
index c3b3affa..51a5f19f 100644
--- a/lowfat/settings.py
+++ b/lowfat/settings.py
@@ -15,7 +15,7 @@
 
 
 URL_SRC = "https://github.com/softwaresaved/lowfat"
-VERSION = "1.18.1"
+VERSION = "1.18.2"
 
 SETTINGS_EXPORT = [
     'URL_SRC',
diff --git a/requirements.txt b/requirements.txt
index fab49184..1879bf77 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ django<2.0
 django-constance[database]
 django-countries
 django-tagulous
-django-crispy-forms
+django-crispy-forms<1.9
 django-datetime-widget
 django-dbbackup>=3.2.0
 django-extensions
@@ -19,7 +19,8 @@ pylint>=1.8.2
 pylint-django>=0.9.0
 pypdf2
 python-gnupg
-social-auth-app-django
+social-auth-app-django~=3.1.0
+social-auth-core~=3.3.1
 # Report
 jupyter
 ipython