diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 94ebcc9e..1db3f3eb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -49,7 +49,6 @@ jobs:
     strategy:
       matrix:
         php-version: ['8.0', '8.1']
-    continue-on-error: ${{ matrix.php-version == '8.1' }}
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
@@ -61,10 +60,7 @@ jobs:
           extensions: openswoole-4.8.1
           coverage: pcov
           ini-values: pcov.directory=module
-      - if: ${{ matrix.php-version == '8.1' }}
-        run: composer install --no-interaction --prefer-dist --ignore-platform-req=php
-      - if: ${{ matrix.php-version != '8.1' }}
-        run: composer install --no-interaction --prefer-dist
+      - run: composer install --no-interaction --prefer-dist
       - run: composer test:unit:ci
       - uses: actions/upload-artifact@v2
         if: ${{ matrix.php-version == '8.0' }}
@@ -79,7 +75,6 @@ jobs:
     strategy:
       matrix:
         php-version: ['8.0', '8.1']
-    continue-on-error: ${{ matrix.php-version == '8.1' }}
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
@@ -91,10 +86,7 @@ jobs:
           extensions: openswoole-4.8.1
           coverage: pcov
           ini-values: pcov.directory=module
-      - if: ${{ matrix.php-version == '8.1' }}
-        run: composer install --no-interaction --prefer-dist --ignore-platform-req=php
-      - if: ${{ matrix.php-version != '8.1' }}
-        run: composer install --no-interaction --prefer-dist
+      - run: composer install --no-interaction --prefer-dist
       - run: composer test:db:sqlite:ci
       - uses: actions/upload-artifact@v2
         if: ${{ matrix.php-version == '8.0' }}
@@ -109,7 +101,6 @@ jobs:
     strategy:
       matrix:
         php-version: ['8.0', '8.1']
-    continue-on-error: ${{ matrix.php-version == '8.1' }}
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
@@ -122,10 +113,7 @@ jobs:
           tools: composer
           extensions: openswoole-4.8.1
           coverage: none
-      - if: ${{ matrix.php-version == '8.1' }}
-        run: composer install --no-interaction --prefer-dist --ignore-platform-req=php
-      - if: ${{ matrix.php-version != '8.1' }}
-        run: composer install --no-interaction --prefer-dist
+      - run: composer install --no-interaction --prefer-dist
       - run: composer test:db:mysql
 
   db-tests-maria:
@@ -133,7 +121,6 @@ jobs:
     strategy:
       matrix:
         php-version: ['8.0', '8.1']
-    continue-on-error: ${{ matrix.php-version == '8.1' }}
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
@@ -146,10 +133,7 @@ jobs:
           tools: composer
           extensions: openswoole-4.8.1
           coverage: none
-      - if: ${{ matrix.php-version == '8.1' }}
-        run: composer install --no-interaction --prefer-dist --ignore-platform-req=php
-      - if: ${{ matrix.php-version != '8.1' }}
-        run: composer install --no-interaction --prefer-dist
+      - run: composer install --no-interaction --prefer-dist
       - run: composer test:db:maria
 
   db-tests-postgres:
@@ -157,7 +141,6 @@ jobs:
     strategy:
       matrix:
         php-version: ['8.0', '8.1']
-    continue-on-error: ${{ matrix.php-version == '8.1' }}
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
@@ -170,10 +153,7 @@ jobs:
           tools: composer
           extensions: openswoole-4.8.1
           coverage: none
-      - if: ${{ matrix.php-version == '8.1' }}
-        run: composer install --no-interaction --prefer-dist --ignore-platform-req=php
-      - if: ${{ matrix.php-version != '8.1' }}
-        run: composer install --no-interaction --prefer-dist
+      - run: composer install --no-interaction --prefer-dist
       - run: composer test:db:postgres
 
   db-tests-ms:
@@ -181,7 +161,6 @@ jobs:
     strategy:
       matrix:
         php-version: ['8.0', '8.1']
-    continue-on-error: ${{ matrix.php-version == '8.1' }}
     env:
       LC_ALL: C
     steps:
@@ -198,10 +177,7 @@ jobs:
           tools: composer
           extensions: openswoole-4.8.1, pdo_sqlsrv-5.10.0beta2
           coverage: none
-      - if: ${{ matrix.php-version == '8.1' }}
-        run: composer install --no-interaction --prefer-dist --ignore-platform-req=php
-      - if: ${{ matrix.php-version != '8.1' }}
-        run: composer install --no-interaction --prefer-dist
+      - run: composer install --no-interaction --prefer-dist
       - name: Create test database
         run: docker-compose exec -T shlink_db_ms /opt/mssql-tools/bin/sqlcmd -S localhost -U sa -P 'Passw0rd!' -Q "CREATE DATABASE shlink_test;"
       - run: composer test:db:ms
@@ -211,7 +187,6 @@ jobs:
     strategy:
       matrix:
         php-version: ['8.0', '8.1']
-    continue-on-error: ${{ matrix.php-version == '8.1' }}
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
@@ -225,10 +200,7 @@ jobs:
           extensions: openswoole-4.8.1
           coverage: pcov
           ini-values: pcov.directory=module
-      - if: ${{ matrix.php-version == '8.1' }}
-        run: composer install --no-interaction --prefer-dist --ignore-platform-req=php
-      - if: ${{ matrix.php-version != '8.1' }}
-        run: composer install --no-interaction --prefer-dist
+      - run: composer install --no-interaction --prefer-dist
       - run: bin/test/run-api-tests.sh
       - uses: actions/upload-artifact@v2
         if: ${{ matrix.php-version == '8.0' }}
@@ -248,7 +220,6 @@ jobs:
       matrix:
         php-version: ['8.0', '8.1']
         test-group: ['unit', 'db']
-    continue-on-error: ${{ matrix.php-version == '8.1' }}
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
@@ -260,10 +231,7 @@ jobs:
           extensions: openswoole-4.8.1
           coverage: pcov
           ini-values: pcov.directory=module
-      - if: ${{ matrix.php-version == '8.1' }}
-        run: composer install --no-interaction --prefer-dist --ignore-platform-req=php
-      - if: ${{ matrix.php-version != '8.1' }}
-        run: composer install --no-interaction --prefer-dist
+      - run: composer install --no-interaction --prefer-dist
       - uses: actions/download-artifact@v2
         with:
           path: build
diff --git a/CHANGELOG.md b/CHANGELOG.md
index b5729915..dc6cdef3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,7 +8,13 @@ The format is based on [Keep a Changelog](https://keepachangelog.com), and this
 ### Added
 * [#1204](https://github.com/shlinkio/shlink/issues/1204) Added support for `openswoole` and migrated official docker image to `openswoole`.
 * [#1242](https://github.com/shlinkio/shlink/issues/1242) Added support to import urls and visits from YOURLS.
+
+    In order to do it, you need to first install this [dedicated plugin](https://slnk.to/yourls-import) in YOURLS, and then run the `short-url:import yourls` command, as with any other source.
+
 * [#1235](https://github.com/shlinkio/shlink/issues/1235) Added support to disable rounding QR codes block sizing via config option, env var or query param.
+* [#1188](https://github.com/shlinkio/shlink/issues/1188) Added support for PHP 8.1.
+
+    The official docker image has also been updated to use PHP 8.1 by default.
 
 ### Changed
 * [#1218](https://github.com/shlinkio/shlink/issues/1218) Updated to symfony/mercure 0.6.
diff --git a/Dockerfile b/Dockerfile
index c0b803b8..d26c7848 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM php:8.0.9-alpine3.14 as base
+FROM php:8.1.0-alpine3.15 as base
 
 ARG SHLINK_VERSION=latest
 ENV SHLINK_VERSION ${SHLINK_VERSION}
diff --git a/composer.json b/composer.json
index 09aaf729..2926a1af 100644
--- a/composer.json
+++ b/composer.json
@@ -24,7 +24,7 @@
         "geoip2/geoip2": "^2.12",
         "guzzlehttp/guzzle": "^7.4",
         "happyr/doctrine-specification": "^2.0",
-        "jaybizzle/crawler-detect": "^1.2",
+        "jaybizzle/crawler-detect": "^1.2.110",
         "laminas/laminas-config": "^3.7",
         "laminas/laminas-config-aggregator": "^1.7",
         "laminas/laminas-diactoros": "^2.8",
@@ -41,13 +41,13 @@
         "monolog/monolog": "^2.3",
         "nikolaposa/monolog-factory": "^3.1",
         "ocramius/proxy-manager": "^2.11",
-        "pagerfanta/core": "^2.7",
+        "pagerfanta/core": "^3.5",
         "php-middleware/request-id": "^4.1",
         "predis/predis": "^1.1",
-        "pugx/shortid-php": "^0.7",
-        "ramsey/uuid": "^3.9",
-        "rlanvin/php-ip": "3.0.0-rc2",
-        "shlinkio/shlink-common": "dev-main#7cc36a6 as 4.2",
+        "pugx/shortid-php": "^1.0",
+        "ramsey/uuid": "^4.2",
+        "rlanvin/php-ip": "dev-master#6b3a785 as 3.0",
+        "shlinkio/shlink-common": "dev-main#c2e3442 as 4.2",
         "shlinkio/shlink-config": "^1.4",
         "shlinkio/shlink-event-dispatcher": "dev-main#3925299 as 2.3",
         "shlinkio/shlink-importer": "dev-main#d099072 as 2.5",
@@ -64,7 +64,7 @@
         "devster/ubench": "^2.1",
         "dms/phpunit-arraysubset-asserts": "^0.3.0",
         "eaglewu/swoole-ide-helper": "dev-master",
-        "infection/infection": "^0.25.3",
+        "infection/infection": "^0.25.4",
         "phpspec/prophecy-phpunit": "^2.0",
         "phpstan/phpstan": "^1.2",
         "phpstan/phpstan-doctrine": "^1.0",
diff --git a/data/infra/php.Dockerfile b/data/infra/php.Dockerfile
index fe6c2722..86f95361 100644
--- a/data/infra/php.Dockerfile
+++ b/data/infra/php.Dockerfile
@@ -1,7 +1,7 @@
-FROM php:8.0.9-fpm-alpine3.14
+FROM php:8.1.0-fpm-alpine3.15
 MAINTAINER Alejandro Celaya <alejandro@alejandrocelaya.com>
 
-ENV APCU_VERSION 5.1.20
+ENV APCU_VERSION 5.1.21
 ENV PDO_SQLSRV_VERSION 5.10.0beta2
 ENV MS_ODBC_SQL_VERSION 17.5.2.2
 
diff --git a/data/infra/swoole.Dockerfile b/data/infra/swoole.Dockerfile
index 9cae5e73..74b83d07 100644
--- a/data/infra/swoole.Dockerfile
+++ b/data/infra/swoole.Dockerfile
@@ -1,7 +1,7 @@
-FROM php:8.0.9-alpine3.14
+FROM php:8.1.0-alpine3.15
 MAINTAINER Alejandro Celaya <alejandro@alejandrocelaya.com>
 
-ENV APCU_VERSION 5.1.20
+ENV APCU_VERSION 5.1.21
 ENV INOTIFY_VERSION 3.0.0
 ENV OPENSWOOLE_VERSION 4.8.1
 ENV PDO_SQLSRV_VERSION 5.10.0beta2
diff --git a/module/CLI/src/Command/ShortUrl/ListShortUrlsCommand.php b/module/CLI/src/Command/ShortUrl/ListShortUrlsCommand.php
index 53e47d3c..cbc6e3ee 100644
--- a/module/CLI/src/Command/ShortUrl/ListShortUrlsCommand.php
+++ b/module/CLI/src/Command/ShortUrl/ListShortUrlsCommand.php
@@ -131,7 +131,7 @@ class ListShortUrlsCommand extends AbstractWithDateRangeCommand
         ];
 
         if ($all) {
-            $data[ShortUrlsParamsInputFilter::ITEMS_PER_PAGE] = -1;
+            $data[ShortUrlsParamsInputFilter::ITEMS_PER_PAGE] = Paginator::ALL_ITEMS;
         }
 
         do {
diff --git a/module/CLI/test/Command/ShortUrl/ListShortUrlsCommandTest.php b/module/CLI/test/Command/ShortUrl/ListShortUrlsCommandTest.php
index 8150d0c8..4a974d73 100644
--- a/module/CLI/test/Command/ShortUrl/ListShortUrlsCommandTest.php
+++ b/module/CLI/test/Command/ShortUrl/ListShortUrlsCommandTest.php
@@ -271,7 +271,7 @@ class ListShortUrlsCommandTest extends TestCase
             'startDate' => null,
             'endDate' => null,
             'orderBy' => null,
-            'itemsPerPage' => -1,
+            'itemsPerPage' => Paginator::ALL_ITEMS,
         ]))->willReturn(new Paginator(new ArrayAdapter([])));
 
         $this->commandTester->execute(['--all' => true]);
diff --git a/module/Core/src/Model/VisitsParams.php b/module/Core/src/Model/VisitsParams.php
index ed98d4d2..dd5a656d 100644
--- a/module/Core/src/Model/VisitsParams.php
+++ b/module/Core/src/Model/VisitsParams.php
@@ -4,6 +4,7 @@ declare(strict_types=1);
 
 namespace Shlinkio\Shlink\Core\Model;
 
+use Shlinkio\Shlink\Common\Paginator\Paginator;
 use Shlinkio\Shlink\Common\Util\DateRange;
 
 use function Shlinkio\Shlink\Core\parseDateRangeFromQuery;
@@ -11,7 +12,6 @@ use function Shlinkio\Shlink\Core\parseDateRangeFromQuery;
 final class VisitsParams
 {
     private const FIRST_PAGE = 1;
-    private const ALL_ITEMS = -1;
 
     private DateRange $dateRange;
     private int $page;
@@ -36,10 +36,10 @@ final class VisitsParams
     private function determineItemsPerPage(?int $itemsPerPage): int
     {
         if ($itemsPerPage !== null && $itemsPerPage < 0) {
-            return self::ALL_ITEMS;
+            return Paginator::ALL_ITEMS;
         }
 
-        return $itemsPerPage ?? self::ALL_ITEMS;
+        return $itemsPerPage ?? Paginator::ALL_ITEMS;
     }
 
     public static function fromRawData(array $query): self
diff --git a/module/Core/src/Repository/VisitRepository.php b/module/Core/src/Repository/VisitRepository.php
index 0fe539af..5c39c21e 100644
--- a/module/Core/src/Repository/VisitRepository.php
+++ b/module/Core/src/Repository/VisitRepository.php
@@ -226,8 +226,6 @@ class VisitRepository extends EntitySpecificationRepository implements VisitRepo
             'id' => 'visit_location_id',
         ]);
 
-        $query = $this->getEntityManager()->createNativeQuery($nativeQb->getSQL(), $rsm);
-
-        return $query->getResult();
+        return $this->getEntityManager()->createNativeQuery($nativeQb->getSQL(), $rsm)->getResult();
     }
 }
diff --git a/module/Core/src/Validation/ShortUrlsParamsInputFilter.php b/module/Core/src/Validation/ShortUrlsParamsInputFilter.php
index 871995dd..c62845d4 100644
--- a/module/Core/src/Validation/ShortUrlsParamsInputFilter.php
+++ b/module/Core/src/Validation/ShortUrlsParamsInputFilter.php
@@ -5,6 +5,7 @@ declare(strict_types=1);
 namespace Shlinkio\Shlink\Core\Validation;
 
 use Laminas\InputFilter\InputFilter;
+use Shlinkio\Shlink\Common\Paginator\Paginator;
 use Shlinkio\Shlink\Common\Validation;
 
 class ShortUrlsParamsInputFilter extends InputFilter
@@ -32,7 +33,7 @@ class ShortUrlsParamsInputFilter extends InputFilter
         $this->add($this->createInput(self::SEARCH_TERM, false));
 
         $this->add($this->createNumericInput(self::PAGE, false));
-        $this->add($this->createNumericInput(self::ITEMS_PER_PAGE, false, -1));
+        $this->add($this->createNumericInput(self::ITEMS_PER_PAGE, false, Paginator::ALL_ITEMS));
 
         $this->add($this->createTagsInput(self::TAGS, false));
     }
diff --git a/module/Rest/test-api/Action/OrphanVisitsTest.php b/module/Rest/test-api/Action/OrphanVisitsTest.php
index 21f4cae1..a37193da 100644
--- a/module/Rest/test-api/Action/OrphanVisitsTest.php
+++ b/module/Rest/test-api/Action/OrphanVisitsTest.php
@@ -5,6 +5,7 @@ declare(strict_types=1);
 namespace ShlinkioApiTest\Shlink\Rest\Action;
 
 use GuzzleHttp\RequestOptions;
+use Shlinkio\Shlink\Common\Paginator\Paginator;
 use Shlinkio\Shlink\TestUtils\ApiTest\ApiTestCase;
 
 class OrphanVisitsTest extends ApiTestCase
@@ -51,7 +52,7 @@ class OrphanVisitsTest extends ApiTestCase
         $payload = $this->getJsonResponsePayload($resp);
         $visits = $payload['visits']['data'] ?? [];
 
-        self::assertEquals($totalItems, $payload['visits']['pagination']['totalItems'] ?? -1);
+        self::assertEquals($totalItems, $payload['visits']['pagination']['totalItems'] ?? Paginator::ALL_ITEMS);
         self::assertCount($expectedAmount, $visits);
         self::assertEquals($expectedVisits, $visits);
     }
diff --git a/module/Rest/test-api/Action/ShortUrlVisitsTest.php b/module/Rest/test-api/Action/ShortUrlVisitsTest.php
index 327c7c05..a9e571da 100644
--- a/module/Rest/test-api/Action/ShortUrlVisitsTest.php
+++ b/module/Rest/test-api/Action/ShortUrlVisitsTest.php
@@ -6,6 +6,7 @@ namespace ShlinkioApiTest\Shlink\Rest\Action;
 
 use GuzzleHttp\Psr7\Query;
 use Laminas\Diactoros\Uri;
+use Shlinkio\Shlink\Common\Paginator\Paginator;
 use Shlinkio\Shlink\TestUtils\ApiTest\ApiTestCase;
 use ShlinkioApiTest\Shlink\Rest\Utils\NotFoundUrlHelpersTrait;
 
@@ -58,7 +59,10 @@ class ShortUrlVisitsTest extends ApiTestCase
         $resp = $this->callApiWithKey(self::METHOD_GET, (string) $url);
         $payload = $this->getJsonResponsePayload($resp);
 
-        self::assertEquals($expectedAmountOfVisits, $payload['visits']['pagination']['totalItems'] ?? -1);
+        self::assertEquals(
+            $expectedAmountOfVisits,
+            $payload['visits']['pagination']['totalItems'] ?? Paginator::ALL_ITEMS,
+        );
         self::assertCount($expectedAmountOfVisits, $payload['visits']['data'] ?? []);
     }
 
@@ -84,7 +88,10 @@ class ShortUrlVisitsTest extends ApiTestCase
         $resp = $this->callApiWithKey(self::METHOD_GET, (string) $url);
         $payload = $this->getJsonResponsePayload($resp);
 
-        self::assertEquals($expectedAmountOfVisits, $payload['visits']['pagination']['totalItems'] ?? -1);
+        self::assertEquals(
+            $expectedAmountOfVisits,
+            $payload['visits']['pagination']['totalItems'] ?? Paginator::ALL_ITEMS,
+        );
         self::assertCount($expectedAmountOfVisits, $payload['visits']['data'] ?? []);
     }
 
diff --git a/phpstan.neon b/phpstan.neon
index bf3afc8e..0a2433e3 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -9,3 +9,6 @@ parameters:
 	doctrine:
 		repositoryClass: Happyr\DoctrineSpecification\Repository\EntitySpecificationRepository
 		objectManagerLoader: 'config/entity-manager.php'
+	ignoreErrors:
+		- '#should return int<0, max> but returns int#'
+		- '#expects -1|int<1, max>, int given#'