diff --git a/CHANGELOG.md b/CHANGELOG.md
index 65f6d0e..c1e9c1a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [1.2.2] - 2022-09-26
+### Fixed
+- Randomize order of banners with the same score
+
 ## [1.2.1] - 2022-08-04
 ### Fixed
 - Types error
@@ -78,7 +82,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [0.1.0] - 2019-04-19
 Last python version
 
-[Unreleased]: https://github.com/adshares/adselect/compare/v1.2.1...develop
+[Unreleased]: https://github.com/adshares/adselect/compare/v1.2.2...develop
+[1.2.2]: https://github.com/adshares/adselect/compare/v1.2.1...v1.2.2
 [1.2.1]: https://github.com/adshares/adselect/compare/v1.2.0...v1.2.1
 [1.2.0]: https://github.com/adshares/adselect/compare/v1.1.2...v1.2.0
 [1.1.2]: https://github.com/adshares/adselect/compare/v1.1.1...v1.1.2
diff --git a/composer.lock b/composer.lock
index 9323a8f..dfc6e47 100644
--- a/composer.lock
+++ b/composer.lock
@@ -8,26 +8,27 @@
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-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "1.10-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "Webmozart\\Assert\\": "src/"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Bernhard Schussek",
-                    "email": "bschussek@gmail.com"
-                }
-            ],
-            "description": "Assertions to validate method input/output with nice error messages.",
-            "keywords": [
-                "assert",
-                "check",
-                "validate"
-            ],
-            "support": {
-                "issues": "https://github.com/webmozarts/assert/issues",
-                "source": "https://github.com/webmozarts/assert/tree/1.11.0"
-            },
-            "time": "2022-06-03T18:03:27+00:00"
         }
     ],
     "aliases": [],
@@ -6957,5 +6669,5 @@
         "ext-pcntl": "*"
     },
     "platform-dev": [],
-    "plugin-api-version": "2.1.0"
+    "plugin-api-version": "2.3.0"
 }
diff --git a/src/Application/Service/BannerFinder.php b/src/Application/Service/BannerFinder.php
index 654794a..0b074be 100644
--- a/src/Application/Service/BannerFinder.php
+++ b/src/Application/Service/BannerFinder.php
@@ -9,5 +9,5 @@
 
 interface BannerFinder
 {
-    public function find(QueryDto $queryDto, int $size): FoundBannersCollection;
+    public function find(QueryDto $queryDto, int $size = 1): FoundBannersCollection;
 }
diff --git a/src/Infrastructure/ElasticSearch/QueryBuilder/ExpQueryBuilder.php b/src/Infrastructure/ElasticSearch/QueryBuilder/ExpQueryBuilder.php
index 7a6adeb..b42196c 100644
--- a/src/Infrastructure/ElasticSearch/QueryBuilder/ExpQueryBuilder.php
+++ b/src/Infrastructure/ElasticSearch/QueryBuilder/ExpQueryBuilder.php
@@ -17,7 +17,7 @@ class ExpQueryBuilder
 double real_rpm = _score % 1000.0;
 double weight = doc['exp.weight'].value;
 weight = Math.pow(Math.random(), 1.0 / weight);
-return Math.round(1000.0 * weight) * 100000 + Math.round(real_rpm * 100);
+return Math.round(1000.0 * weight) * 100000 + Math.round(real_rpm * 100) + Math.random();
 PAINLESS;
 
     public function __construct(QueryInterface $query)
diff --git a/src/Infrastructure/ElasticSearch/QueryBuilder/QueryBuilder.php b/src/Infrastructure/ElasticSearch/QueryBuilder/QueryBuilder.php
index 7cef3c4..de3fd9b 100644
--- a/src/Infrastructure/ElasticSearch/QueryBuilder/QueryBuilder.php
+++ b/src/Infrastructure/ElasticSearch/QueryBuilder/QueryBuilder.php
@@ -1,9 +1,5 @@
 <?php
 
-/**
- * @phpcs:disable Generic.Files.LineLength.TooLong
- */
-
 declare(strict_types=1);
 
 namespace App\Infrastructure\ElasticSearch\QueryBuilder;
@@ -29,7 +25,7 @@ public function build(): array
             = <<<PAINLESS
 double real_rpm = _score % 1000.0;
 if (params.min_rpm > real_rpm) {
-    return 0;
+    return Math.random();
 }
 return Math.round(
         100.0
@@ -38,7 +34,8 @@ public function build(): array
         * (params.last_seen.containsKey(doc._id[0]) ? (params.last_seen[doc._id[0]]) : 1)
     )
     * 100000
-    + Math.round(real_rpm * 100);
+    + Math.round(real_rpm * 100)
+    + Math.random();
 PAINLESS;
 
         return [
diff --git a/src/Infrastructure/ElasticSearch/Service/BannerFinder.php b/src/Infrastructure/ElasticSearch/Service/BannerFinder.php
index 8cf8c70..e534b87 100644
--- a/src/Infrastructure/ElasticSearch/Service/BannerFinder.php
+++ b/src/Infrastructure/ElasticSearch/Service/BannerFinder.php
@@ -44,7 +44,7 @@ public function __construct(
 
     public function find(
         QueryDto $queryDto,
-        int $size
+        int $size = 1
     ): FoundBannersCollection {
         $userHistory = $this->loadUserHistory($queryDto);
         $defined = $this->getDefinedRequireKeywords();
@@ -110,7 +110,7 @@ public function find(
                     $hit['_id'],
                     in_array($queryDto->getSize(), $hit['fields']['banner.size'], true)
                         ? $queryDto->getSize() : $hit['fields']['banner.size'][0],
-                    fmod($hit['_score'], 100_000) / 100
+                    fmod(floor($hit['_score']), 100_000) / 100
                 )
             );
         }
diff --git a/src/UI/Controller/CampaignController.php b/src/UI/Controller/CampaignController.php
index a0faeb8..44986f6 100644
--- a/src/UI/Controller/CampaignController.php
+++ b/src/UI/Controller/CampaignController.php
@@ -72,7 +72,6 @@ public function delete(Request $request): JsonResponse
     public function findBanners(Request $request): JsonResponse
     {
         $queries = json_decode($request->getContent(), true);
-        $size = 1;
 
         $results = [];
         foreach ($queries as $query) {
@@ -80,7 +79,7 @@ public function findBanners(Request $request): JsonResponse
 
             try {
                 $queryDto = QueryDto::fromArray($query);
-                $banners = $this->bannerFinder->find($queryDto, $size);
+                $banners = $this->bannerFinder->find($queryDto);
                 $results[$requestId] = (new FoundBannerResponse($banners))->toArray();
             } catch (ValidationDtoException $exception) {
                 $results[$requestId] = [];
@@ -89,7 +88,6 @@ public function findBanners(Request $request): JsonResponse
                     sprintf('[Find] Invalid input data (%s).', $exception->getMessage()),
                     $query
                 );
-                // think about adding a referer and more data related to a server which asks
             }
         }
 
diff --git a/src/UI/Controller/Exception/IncorrectDataException.php b/src/UI/Controller/Exception/IncorrectDataException.php
index 1d5e3e6..f0522bc 100644
--- a/src/UI/Controller/Exception/IncorrectDataException.php
+++ b/src/UI/Controller/Exception/IncorrectDataException.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace App\UI\Controller\Exception;
 
 use Symfony\Component\HttpKernel\Exception\BadRequestHttpException;
@@ -11,4 +13,4 @@ public function __construct(Throwable $previous = null, int $code = 0, array $he
     {
         parent::__construct('Incorrect data', $previous, $code, $headers);
     }
-}
\ No newline at end of file
+}
diff --git a/symfony.lock b/symfony.lock
index 4139ed4..dc9ff2d 100644
--- a/symfony.lock
+++ b/symfony.lock
@@ -97,18 +97,6 @@
     "phpcompatibility/php-compatibility": {
         "version": "9.3.5"
     },
-    "phpdocumentor/reflection-common": {
-        "version": "1.0.1"
-    },
-    "phpdocumentor/reflection-docblock": {
-        "version": "4.3.1"
-    },
-    "phpdocumentor/type-resolver": {
-        "version": "0.4.0"
-    },
-    "phpspec/prophecy": {
-        "version": "1.8.0"
-    },
     "phpstan/phpdoc-parser": {
         "version": "0.5.4"
     },
@@ -421,8 +409,5 @@
     },
     "theseer/tokenizer": {
         "version": "1.1.2"
-    },
-    "webmozart/assert": {
-        "version": "1.4.0"
     }
 }
diff --git a/tests/Integration/SelectTest.php b/tests/Integration/SelectTest.php
index 8443407..a6e00cd 100644
--- a/tests/Integration/SelectTest.php
+++ b/tests/Integration/SelectTest.php
@@ -227,7 +227,6 @@ public function testInfiniteCampaign(): void
 
     public function testSelectDifferentCampaignsWhenNoPayments(): void
     {
-        self::markTestSkipped('Not paying campaigns are not handled yet.');
         $bannerIds = [
             '00000000000000000000000000000001',
             '00000000000000000000000000000002',
@@ -248,7 +247,6 @@ public function testSelectDifferentCampaignsWhenNoPayments(): void
 
     public function testSelectDifferentBannersWhenNoPayments(): void
     {
-        self::markTestSkipped('Not paying campaigns are not handled yet.');
         $bannerIds = [
             '00000000000000000000000000000001',
             '00000000000000000000000000000002',
@@ -266,9 +264,15 @@ public function testSelectDifferentBannersWhenNoPayments(): void
         self::assertResultsPresent($bannerIds, $results, 250);
     }
 
+    public function testSelectDifferentBannersWhenNoPaymentsAndFullRandomness(): void
+    {
+        self::enableEsClientRandomness();
+        self::setExperimentChance(1);
+        $this->testSelectDifferentBannersWhenNoPayments();
+    }
+
     public function testSelectOnlyMatchingCampaignsWhenNoPayments(): void
     {
-        self::markTestSkipped('Not paying campaigns are not handled yet.');
         $campaignsData = [
             (new CampaignBuilder())
                 ->banners([(new BannerBuilder())->id('11111111111111111111111111111111')->build()])
@@ -383,6 +387,75 @@ public function testSelectDifferentCampaignsForSameUser2of3CampaignsPaid(): void
         self::assertResultsPresent($payingBannerIds, $results);
     }
 
+    /**
+     * @dataProvider eventAmountProvider
+     */
+    public function testSelectDifferentBannersWithEqualPaymentsPerEvent3of3(int $eventAmount): void
+    {
+        $campaignId = '10000000000000000000000000000000';
+        $bannerIds = [
+            '11111111111111111111111111111111',
+            '22222222222222222222222222222222',
+            '33333333333333333333333333333333',
+        ];
+        $campaignData = [
+            (new CampaignBuilder())
+                ->id($campaignId)
+                ->banners(array_map(fn($id) => (new BannerBuilder())->id($id)->build(), $bannerIds))
+                ->build(),
+        ];
+        $this->setupCampaigns($campaignData);
+
+        $payingBannerIds = $bannerIds;
+        foreach ($payingBannerIds as $payingBannerId) {
+            $this->setupInitialPaymentsWithEqualEventAmount(
+                [$campaignId => $payingBannerId],
+                $payingBannerIds,
+                $eventAmount
+            );
+        }
+
+        $results = $this->findBanners();
+
+        self::assertResultsPresent($payingBannerIds, $results, 250);
+    }
+
+    /**
+     * @dataProvider eventAmountProvider
+     */
+    public function testSelectDifferentBannersWithEqualPaymentsPerEvent2of3(int $eventAmount): void
+    {
+        $campaignId = '10000000000000000000000000000000';
+        $bannerIds = [
+            '11111111111111111111111111111111',
+            '22222222222222222222222222222222',
+            '33333333333333333333333333333333',
+        ];
+        $campaignData = [
+            (new CampaignBuilder())
+                ->id($campaignId)
+                ->banners(array_map(fn($id) => (new BannerBuilder())->id($id)->build(), $bannerIds))
+                ->build(),
+        ];
+        $this->setupCampaigns($campaignData);
+
+        $payingBannerIds = [
+            '22222222222222222222222222222222',
+            '33333333333333333333333333333333',
+        ];
+        foreach ($payingBannerIds as $payingBannerId) {
+            $this->setupInitialPaymentsWithEqualEventAmount(
+                [$campaignId => $payingBannerId],
+                $payingBannerIds,
+                $eventAmount
+            );
+        }
+
+        $results = $this->findBanners();
+
+        self::assertResultsPresent($payingBannerIds, $results, 250);
+    }
+
     /**
      * @dataProvider eventAmountProvider
      */
@@ -853,7 +926,7 @@ private function updateStatisticsOrFail(): void
             self::assertLessThan($maxTries, $try, 'Statistics were not updated');
             sleep(1);
             $content = self::runCommand('ops:es:update-stats');
-            $updated = str_starts_with($content, 'Finished');
+            $updated = str_starts_with($content, 'Finished') || str_starts_with($content, 'No events to process');
             $try++;
         } while (!$updated);
 
@@ -1011,6 +1084,9 @@ private function findBanners(): array
             } else {
                 $results[$bannerId]++;
             }
+            if ($i % 83 === 82) {
+                $this->updateStatisticsOrFail();
+            }
         }
         return $results;
     }