diff --git a/aws/resources.py b/aws/resources.py
index 8dd948c50..e1327d06c 100644
--- a/aws/resources.py
+++ b/aws/resources.py
@@ -124,13 +124,14 @@ def create_database_resource(template, database_allocated_storage_parameter,
             AllocatedStorage=Ref(database_allocated_storage_parameter),
             DBInstanceClass=Ref(database_class_parameter),
             Engine='MySQL',
-            EngineVersion='5.7',
+            EngineVersion='8.0',
             MasterUsername=Ref(database_username_parameter),
             MasterUserPassword=Ref(database_password_parameter),
             VPCSecurityGroups=[
                 GetAtt(database_security_group_resource, 'GroupId')],
             DBSubnetGroupName=Ref(database_subnet_group_resource),
-            PubliclyAccessible=False
+            PubliclyAccessible=False,
+            AllowMajorVersionUpgrade=True
         )
     )
 
diff --git a/config/local.php b/config/local.php
index 1753c1051..c0f320ce8 100644
--- a/config/local.php
+++ b/config/local.php
@@ -34,17 +34,17 @@
     /*
      * The URI for the Terms and Conditions page.
      */
-    'tandc_uri' => env('TANDC_URI', Str::finish(config('local.frontend_uri'), '/') . 'terms-and-conditions'),
+    'tandc_uri' => env('TANDC_URI', Str::finish(env('FRONTEND_URI', ''), '/') . 'terms-and-conditions'),
 
     /*
      * The URI for the Privacy page.
      */
-    'privacy_uri' => env('PRIVACY_URI', Str::finish(config('local.frontend_uri'), '/') . 'privacy-policy'),
+    'privacy_uri' => env('PRIVACY_URI', Str::finish(env('FRONTEND_URI', ''), '/') . 'privacy-policy'),
 
     /*
      * The URI for the Accessibility page.
      */
-    'accessibility_uri' => env('ACCESSIBILITY_URI', Str::finish(config('local.frontend_uri'), '/') . 'accessibility_statement'),
+    'accessibility_uri' => env('ACCESSIBILITY_URI', Str::finish(env('FRONTEND_URI', ''), '/') . 'accessibility_statement'),
 
     /*
      * The number of working days a service must respond within.
diff --git a/docker-compose.yml b/docker-compose.yml
index 5b882f169..7e7428e9f 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,4 +1,4 @@
-version: "3"
+version: '3'
 
 services:
   app:
@@ -43,22 +43,22 @@ services:
       - .:/var/www/html
 
   mysql:
-    image: mysql:5.7
+    image: mysql:8.0
     environment:
-      MYSQL_ROOT_PASSWORD: "${DB_ROOT_PASS}"
-      MYSQL_DATABASE: "${DB_DATABASE}"
-      MYSQL_USER: "${DB_USERNAME}"
-      MYSQL_PASSWORD: "${DB_PASSWORD}"
+      MYSQL_ROOT_PASSWORD: '${DB_ROOT_PASS}'
+      MYSQL_DATABASE: '${DB_DATABASE}'
+      MYSQL_USER: '${DB_USERNAME}'
+      MYSQL_PASSWORD: '${DB_PASSWORD}'
     volumes:
       - mysql-data:/var/lib/mysql
 
   mysql-testing:
-    image: mysql:5.7
+    image: mysql:8.0
     environment:
-      MYSQL_ROOT_PASSWORD: "${DB_ROOT_PASS}"
-      MYSQL_DATABASE: "${DB_DATABASE}"
-      MYSQL_USER: "${DB_USERNAME}"
-      MYSQL_PASSWORD: "${DB_PASSWORD}"
+      MYSQL_ROOT_PASSWORD: '${DB_ROOT_PASS}'
+      MYSQL_DATABASE: '${DB_DATABASE}'
+      MYSQL_USER: '${DB_USERNAME}'
+      MYSQL_PASSWORD: '${DB_PASSWORD}'
     command: mysqld --general-log=1 --general-log-file=/var/log/mysql/general-log.log
 
   redis:
@@ -72,8 +72,8 @@ services:
   elasticsearch:
     image: elasticsearch:7.9.3
     environment:
-      - "discovery.type=single-node"
-      - "xpack.ml.enabled=false"
+      - 'discovery.type=single-node'
+      - 'xpack.ml.enabled=false'
     volumes:
       - elasticsearch-data:/usr/share/elasticsearch/data
 
diff --git a/tests/Feature/UpdateRequestsTest.php b/tests/Feature/UpdateRequestsTest.php
index 9f261d168..deea58641 100644
--- a/tests/Feature/UpdateRequestsTest.php
+++ b/tests/Feature/UpdateRequestsTest.php
@@ -14,12 +14,12 @@
 use App\Models\UsefulInfo;
 use App\Events\EndpointHit;
 use App\Models\SocialMedia;
-use Carbon\CarbonImmutable;
 use App\Models\Organisation;
 use App\Models\UpdateRequest;
 use Illuminate\Http\Response;
 use Laravel\Passport\Passport;
 use App\Models\ServiceLocation;
+use Illuminate\Support\Collection;
 use Illuminate\Support\Facades\Date;
 use Illuminate\Support\Facades\Event;
 use Illuminate\Support\Facades\Queue;
@@ -1496,6 +1496,7 @@ public function last_modified_at_is_set_to_now_when_service_updated(): void
             'created_at' => $oldNow,
             'updated_at' => $oldNow,
         ]);
+
         $updateRequest = $service->updateRequests()->create([
             'user_id' => User::factory()->create()->id,
             'data' => [
@@ -1507,7 +1508,49 @@ public function last_modified_at_is_set_to_now_when_service_updated(): void
 
         $response->assertStatus(Response::HTTP_OK);
         $this->assertDatabaseHas($service->getTable(), [
-            'last_modified_at' => $newNow->format(CarbonImmutable::ISO8601),
+            'last_modified_at' => $newNow->toDateTimeString(),
+        ]);
+    }
+
+    /**
+     * @test
+     */
+    public function lastModifiedAtIsUpdatedWhenServiceUpdatedByUpdateRequest()
+    {
+        $oldNow = Date::now()->subMonths(6);
+        $newNow = Date::now();
+        Date::setTestNow($newNow);
+
+        $service = Service::factory()->create([
+            'slug' => 'test-service',
+            'status' => Service::STATUS_ACTIVE,
+            'last_modified_at' => $oldNow,
+            'created_at' => $oldNow,
+            'updated_at' => $oldNow,
+        ]);
+        $taxonomy = Taxonomy::factory()->create();
+        $service->syncTaxonomyRelationships(new Collection([$taxonomy]));
+        $user = User::factory()->create()->makeServiceAdmin($service);
+
+        Passport::actingAs($user);
+
+        $payload = [
+            'name' => 'Test Service',
+        ];
+        $response = $this->json('PUT', "/core/v1/services/{$service->id}", $payload);
+
+        $response->assertStatus(Response::HTTP_OK);
+        $response->assertJsonFragment(['data' => $payload]);
+
+        $updateRequest = UpdateRequest::find($response->json('id'));
+
+        $this->assertEquals($updateRequest->data, $payload);
+
+        $this->approveUpdateRequest($updateRequest->id);
+
+        $this->assertDatabaseHas($service->getTable(), [
+            'id' => $service->id,
+            'last_modified_at' => $newNow->toDateTimeString(),
         ]);
     }
 }