diff --git a/app/controllers/sidebars_controller.rb b/app/controllers/sidebars_controller.rb
index 2fb04c9b3..3b9e2fe93 100644
--- a/app/controllers/sidebars_controller.rb
+++ b/app/controllers/sidebars_controller.rb
@@ -11,7 +11,7 @@ class SidebarsController < ApplicationController
 
   def get_latest_campaign_articles
     campaign_articles_scope = Article.tagged_with(Campaign.current.featured_tags, any: true)
-      .where("published_at > ? AND score > ?", 4.weeks.ago, 0)
+      .where("published_at > ? AND score > ?", SiteConfig.campaign_articles_expiry_time.weeks.ago, 0)
       .order(hotness_score: :desc)
 
     requires_approval = Campaign.current.articles_require_approval?
diff --git a/app/controllers/stories_controller.rb b/app/controllers/stories_controller.rb
index 740a7d54c..6d1b23579 100644
--- a/app/controllers/stories_controller.rb
+++ b/app/controllers/stories_controller.rb
@@ -63,7 +63,7 @@ class StoriesController < ApplicationController
 
   def get_latest_campaign_articles
     campaign_articles_scope = Article.tagged_with(Campaign.current.featured_tags, any: true)
-      .where("published_at > ? AND score > ?", 4.weeks.ago, 0)
+      .where("published_at > ? AND score > ?", SiteConfig.campaign_articles_expiry_time.weeks.ago, 0)
       .order(hotness_score: :desc)
 
     requires_approval = Campaign.current.articles_require_approval?
diff --git a/app/lib/constants/site_config.rb b/app/lib/constants/site_config.rb
index 7b655e1d7..f75a823e8 100644
--- a/app/lib/constants/site_config.rb
+++ b/app/lib/constants/site_config.rb
@@ -45,6 +45,10 @@ module Constants
         description: "https://url.com/lander",
         placeholder: "URL campaign sidebar image will link to"
       },
+      campaign_articles_expiry_time: {
+        description: "Sets the expiry time for articles (in weeks) to be displayed in campaign sidebar",
+        placeholder: ""
+      },
       community_copyright_start_year: {
         description: "Used to mark the year this forem was started.",
         placeholder: Time.zone.today.year.to_s
diff --git a/app/models/site_config.rb b/app/models/site_config.rb
index bc5a11a27..b329ddfd0 100644
--- a/app/models/site_config.rb
+++ b/app/models/site_config.rb
@@ -51,6 +51,7 @@ class SiteConfig < RailsSettings::Base
   field :campaign_sidebar_image, type: :string, default: nil
   field :campaign_url, type: :string, default: nil
   field :campaign_articles_require_approval, type: :boolean, default: 0
+  field :campaign_articles_expiry_time, type: :integer, default: 4
 
   # Community Content
   field :community_name, type: :string, default: ApplicationConfig["COMMUNITY_NAME"] || "New Forem"
diff --git a/app/views/admin/configs/show.html.erb b/app/views/admin/configs/show.html.erb
index b9fa72b3b..e7e3f34e4 100644
--- a/app/views/admin/configs/show.html.erb
+++ b/app/views/admin/configs/show.html.erb
@@ -438,6 +438,15 @@
                                    placeholder: Constants::SiteConfig::DETAILS[:campaign_call_to_action][:placeholder] %>
                 </div>
 
+                <div class="crayons-field">
+                  <%= admin_config_label :campaign_articles_expiry_time, "Campaign article expiry time" %>
+                  <%= admin_config_description Constants::SiteConfig::DETAILS[:campaign_articles_expiry_time][:description] %>
+                  <%= f.number_field :campaign_articles_expiry_time,
+                                     class: "crayons-textfield",
+                                     value: SiteConfig.campaign_articles_expiry_time,
+                                     placeholder: Constants::SiteConfig::DETAILS[:campaign_articles_expiry_time][:placeholder] %>
+                </div>
+
                 <%= render "form_submission", f: f %>
               </fieldset>
             </div>
diff --git a/spec/requests/admin/configs_spec.rb b/spec/requests/admin/configs_spec.rb
index d952b1382..45f6955de 100644
--- a/spec/requests/admin/configs_spec.rb
+++ b/spec/requests/admin/configs_spec.rb
@@ -86,6 +86,14 @@ RSpec.describe "/admin/config", type: :request do
           expect(SiteConfig.authentication_providers).to eq([enabled])
         end
 
+        describe "Campaigns" do
+          it "sets campaign_articles_expiry_time" do
+            post "/admin/config", params: { site_config: { campaign_articles_expiry_time: 4 },
+                                            confirmation: confirmation_message }
+            expect(SiteConfig.campaign_articles_expiry_time).to eq(4)
+          end
+        end
+
         it "strips empty elements" do
           provider = Authentication::Providers.available.last.to_s
           enabled = "#{provider}, '', nil"