diff --git a/config/locales/devise.en-GB.yml b/config/locales/devise.en-GB.yml
index 865d89793a..ab9c7a0845 100644
--- a/config/locales/devise.en-GB.yml
+++ b/config/locales/devise.en-GB.yml
@@ -12,6 +12,8 @@ en-GB:
       locked: Your account is locked.
       not_found_in_database: Invalid %{authentication_keys} or password.
       pending: Your account is still under review.
+      timeout: Your session expired. Please sign in again to continue.
+      unauthenticated: You need to sign in or sign up before continuing.
       unconfirmed: You have to confirm your email address before continuing.
     mailer:
       confirmation_instructions:
@@ -99,6 +101,7 @@ en-GB:
     unlocks:
       send_instructions: You will receive an email with instructions for how to unlock your account in a few minutes. Please check your spam folder if you didn't receive this email.
       send_paranoid_instructions: If your account exists, you will receive an email with instructions for how to unlock it in a few minutes. Please check your spam folder if you didn't receive this email.
+      unlocked: Your account has been unlocked successfully. Please sign in to continue.
   errors:
     messages:
       already_confirmed: was already confirmed, please try signing in