diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 5d12faea8c0..c2b79b3a1cd 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -145,6 +145,7 @@ jobs:
             ${{ runner.os }}-
             ${{ hashFiles('.github/workflows/tests.yml') }}-
             ${{ hashFiles('db/**/*', 'plugins/**/db/**/*') }}-
+            ${{ hashFiles('config/environments/test.rb') }}-
             ${{ env.USES_PARALLEL_DATABASES }}
 
       - name: Restore database from cache
diff --git a/config/environments/test.rb b/config/environments/test.rb
index cb3edca1239..587a79b8a04 100644
--- a/config/environments/test.rb
+++ b/config/environments/test.rb
@@ -104,4 +104,10 @@ Discourse::Application.configure do
 
     SiteSetting.refresh!
   end
+
+  if ENV["CI"].present?
+    config.to_prepare do
+      ActiveSupport.on_load(:active_record_postgresqladapter) { self.create_unlogged_tables = true }
+    end
+  end
 end