diff --git a/activemodel/lib/active_model/locale/en.yml b/activemodel/lib/active_model/locale/en.yml
index c370a1f33e..4a27355c6c 100644
--- a/activemodel/lib/active_model/locale/en.yml
+++ b/activemodel/lib/active_model/locale/en.yml
@@ -28,4 +28,4 @@ en:
 
     attributes:
       password:
-        unsecure: "is too weak and common"
+        insecure: "is too weak and common"
diff --git a/activemodel/lib/active_model/secure_password.rb b/activemodel/lib/active_model/secure_password.rb
index cd997a61db..1dcd389f8a 100644
--- a/activemodel/lib/active_model/secure_password.rb
+++ b/activemodel/lib/active_model/secure_password.rb
@@ -64,7 +64,7 @@ module ActiveModel
     def password_must_be_strong
       if password.present?
         errors.add(:password, :too_short, :count => 7) unless password.size > 6
-        errors.add(:password, :unsecure) if WEAK_PASSWORDS.include?(password)
+        errors.add(:password, :insecure) if WEAK_PASSWORDS.include?(password)
       end
     end
   end