diff --git a/db/migrate/20210204114922_add_default_avatar.rb b/db/migrate/20210204114922_add_default_avatar.rb
new file mode 100644
index 0000000..968058b
--- /dev/null
+++ b/db/migrate/20210204114922_add_default_avatar.rb
@@ -0,0 +1,14 @@
+class AddDefaultAvatar < ActiveRecord::Migration[6.0]
+  def up
+    User.all.each do |user|
+      next if user.avatar.attached?
+
+      user.avatar.attach(
+        io: File.open(
+          Rails.root.join('app/assets/images/default_avatar.png')
+        ), filename: 'default_avatar.png', content_type: 'image/png'
+      )
+      user.save
+    end
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 61c27a8..61479fc 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2021_02_02_132517) do
+ActiveRecord::Schema.define(version: 2021_02_04_114922) do
 
   create_table "active_storage_attachments", force: :cascade do |t|
     t.string "name", null: false