diff --git a/app/views/devise/passwords/edit.haml b/app/views/devise/passwords/edit.haml
index 16a5a38d4c7..126ae62f491 100644
--- a/app/views/devise/passwords/edit.haml
+++ b/app/views/devise/passwords/edit.haml
@@ -38,7 +38,7 @@
                            aria:           {labelledby: "passwordConfirmationLabel"}
 
       = hidden_field(:user, :remember_me, value: 1)
-      = f.submit t('devise.passwords.edit.change_password'), class: "btn btn-block btn-default"
+      = f.submit t("devise.passwords.edit.change_password"), class: "btn btn-block btn-primary"
 
     .text-center
-      = link_to t('devise.shared.links.sign_in'), new_session_path(resource_name)
+      = link_to t("devise.shared.links.sign_in"), new_session_path(resource_name)
diff --git a/app/views/devise/passwords/edit.mobile.haml b/app/views/devise/passwords/edit.mobile.haml
index 6b96290f811..6a41a6f0200 100644
--- a/app/views/devise/passwords/edit.mobile.haml
+++ b/app/views/devise/passwords/edit.mobile.haml
@@ -10,20 +10,20 @@
         = f.hidden_field :reset_password_token
         %fieldset
           %legend
-            =t('devise.passwords.edit.change_password')
+            =t("devise.passwords.edit.change_password")
 
           .control-group
-            = f.label :password, t('devise.passwords.edit.new_password'), class: "control-label"
+            = f.label :password, t("devise.passwords.edit.new_password"), class: "control-label"
             .controls
               = f.password_field :password
 
           .control-group
-            = f.label :password_confirmation, t('devise.passwords.edit.confirm_password'), class: "control-label"
+            = f.label :password_confirmation, t("devise.passwords.edit.confirm_password"), class: "control-label"
             .controls
               = f.password_field :password_confirmation
 
           .controls
-            = f.submit t('devise.passwords.edit.change_password'), :class: 'btn btn-primary'
+            = f.submit t("devise.passwords.edit.change_password"), class: "btn btn-primary"
 
 %footer
-  = link_to t('layouts.application.toggle'), toggle_mobile_path
+  = link_to t("layouts.application.toggle"), toggle_mobile_path
diff --git a/app/views/devise/passwords/new.haml b/app/views/devise/passwords/new.haml
index 0dd9422473e..eccb259a26d 100644
--- a/app/views/devise/passwords/new.haml
+++ b/app/views/devise/passwords/new.haml
@@ -26,7 +26,7 @@
                        autofocus:      true,
                        aria:           {labelledby: "passwordLabel"}
 
-      = f.submit t('devise.passwords.new.send_password_instructions'), class: "btn btn-block btn-default"
+      = f.submit t("devise.passwords.new.send_password_instructions"), class: "btn btn-block btn-primary"
 
     .text-center
       = link_to t('devise.shared.links.sign_in'), new_session_path(resource_name)
diff --git a/app/views/devise/passwords/new.mobile.haml b/app/views/devise/passwords/new.mobile.haml
index dee951b4e2e..241a1d70c1d 100644
--- a/app/views/devise/passwords/new.mobile.haml
+++ b/app/views/devise/passwords/new.mobile.haml
@@ -18,10 +18,10 @@
               = f.text_field :email
 
           .controls
-            = f.submit t('devise.passwords.new.send_password_instructions'), :class => 'btn'
+            = f.submit t("devise.passwords.new.send_password_instructions"), class: "btn btn-primary"
 
 %footer
-  - if display_registration_link?    
+  - if display_registration_link?
     = link_to t('devise.shared.links.sign_up'), new_registration_path(resource_name)
 
   = link_to t('devise.sessions.new.sign_in'), new_user_session_path()
diff --git a/app/views/registrations/_form.haml b/app/views/registrations/_form.haml
index 06c9b9099f6..edd2603414d 100644
--- a/app/views/registrations/_form.haml
+++ b/app/views/registrations/_form.haml
@@ -57,4 +57,5 @@
     %p.terms.text-center#terms
       = t('registrations.new.terms', terms_link: link_to(t('registrations.new.terms_link'), terms_path, target: "_blank")).html_safe
 
-  = f.submit t('registrations.new.sign_up'), class: "btn btn-block btn-large btn-default", data: {disable_with: t('registrations.new.submitting')}
+  = f.submit t("registrations.new.sign_up"), class: "btn btn-block btn-large btn-primary",
+    data: {disable_with: t("registrations.new.submitting")}
diff --git a/app/views/sessions/new.html.haml b/app/views/sessions/new.html.haml
index e2f8e9019fb..32e9f53b367 100644
--- a/app/views/sessions/new.html.haml
+++ b/app/views/sessions/new.html.haml
@@ -34,7 +34,7 @@
                          aria: {labelledby: "passwordLabel"}
 
     = f.hidden_field :remember_me, value: 1
-    = f.submit t('devise.sessions.new.sign_in'), class: 'btn btn-large btn-block btn-default'
+    = f.submit t("devise.sessions.new.sign_in"), class: "btn btn-large btn-block btn-primary"
 
   .text-center
     - if display_password_reset_link?