Update devise and reference in Gemfile

Gemfile

@@ -11,7 +11,7 @@ gem 'airbrake', '~> 5.3'
 gem "mongoid", "~> 5.2.0"
 
 # Using devise for authentication
-gem 'devise', '~> 3.4.1'
+gem "devise", ">= 4.4.3"
 
 # Using cancan for authorisation
 gem 'cancan', '~> 1.6.10'

Gemfile.lock

@@ -51,7 +51,7 @@ GEM
     aws-healthcheck (1.0.1)
       rails (>= 3.0)
     backports (3.12.0)
-    bcrypt (3.1.11)
+    bcrypt (3.1.12)
     better_errors (2.5.1)
       coderay (>= 1.0.0)
       erubi (>= 1.0.0)
@@ -118,12 +118,11 @@ GEM
     cucumber-wire (0.0.1)
     database_cleaner (1.7.0)
     debug_inspector (0.0.3)
-    devise (3.4.1)
+    devise (4.6.1)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
-      railties (>= 3.2.6, < 5)
+      railties (>= 4.1.0, < 6.0)
       responders
-      thread_safe (~> 0.1)
       warden (~> 1.2.3)
     diff-lcs (1.3)
     docile (1.3.1)
@@ -270,8 +269,9 @@ GEM
     rake (12.3.2)
     redic (1.5.0)
       hiredis
-    responders (2.2.0)
-      railties (>= 4.2.0, < 5.1)
+    responders (2.4.1)
+      actionpack (>= 4.2.0, < 6.0)
+      railties (>= 4.2.0, < 6.0)
     rest-client (2.0.2)
       http-cookie (>= 1.0.2, < 2.0)
       mime-types (>= 1.16, < 4.0)
@@ -347,7 +347,7 @@ GEM
     unf_ext (0.0.7.5)
     unicode_utils (1.4.0)
     vcr (4.0.0)
-    warden (1.2.6)
+    warden (1.2.7)
       rack (>= 1.0)
     webmock (3.5.1)
       addressable (>= 2.3.6)
@@ -381,7 +381,7 @@ DEPENDENCIES
   countries
   cucumber-rails (~> 1.6.0)
   database_cleaner (~> 1.7.0)
-  devise (~> 3.4.1)
+  devise (>= 4.4.3)
   dotenv-rails
   factory_girl_rails (~> 4.4.1)
   faker