diff --git a/installer/templates/phx_single/config/prod.exs b/installer/templates/phx_single/config/prod.exs
index a9c1973466..d0a599fc8a 100644
--- a/installer/templates/phx_single/config/prod.exs
+++ b/installer/templates/phx_single/config/prod.exs
@@ -8,7 +8,10 @@ import Config<%= if @javascript or @css do %>
 config :<%= @web_app_name %>, <%= @endpoint_module %>, cache_static_manifest: "priv/static/cache_manifest.json"<% end %><%= if @mailer do %>
 
 # Configures Swoosh API Client
-config :swoosh, api_client: Swoosh.ApiClient.Finch, finch_name: <%= @app_module %>.Finch<% end %>
+config :swoosh, api_client: Swoosh.ApiClient.Finch, finch_name: <%= @app_module %>.Finch
+
+# Disable Swoosh Local Memory Storage
+config :swoosh, local: false<% end %>
 
 # Do not print debug messages in production
 config :logger, level: :info
diff --git a/installer/templates/phx_umbrella/config/prod.exs b/installer/templates/phx_umbrella/config/prod.exs
index 0c89aed8e5..95b0b8036b 100644
--- a/installer/templates/phx_umbrella/config/prod.exs
+++ b/installer/templates/phx_umbrella/config/prod.exs
@@ -2,7 +2,10 @@ import Config
 
 <%= if @mailer do %>
 # Configures Swoosh API Client
-config :swoosh, :api_client, <%= @app_module %>.Finch<% end %>
+config :swoosh, :api_client, <%= @app_module %>.Finch
+
+# Disable Swoosh Local Memory Storage
+config :swoosh, local: false<% end %>
 
 # Do not print debug messages in production
 config :logger, level: :info