diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 741f80c0..9d2067da 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,7 +21,7 @@ jobs:
         with:
           php-version: ${{ matrix.php-version }}
           tools: composer
-          extensions: swoole-4.6.7
+          extensions: swoole-4.7.1
           coverage: none
       - run: composer install --no-interaction --prefer-dist
       - run: composer cs
@@ -39,7 +39,7 @@ jobs:
         with:
           php-version: ${{ matrix.php-version }}
           tools: composer
-          extensions: swoole-4.6.7
+          extensions: swoole-4.7.1
           coverage: none
       - run: composer install --no-interaction --prefer-dist
       - run: composer stan
@@ -48,7 +48,8 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        php-version: ['8.0']
+        php-version: ['8.0', '8.1']
+    continue-on-error: ${{ matrix.php-version == '8.1' }}
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
@@ -57,10 +58,13 @@ jobs:
         with:
           php-version: ${{ matrix.php-version }}
           tools: composer
-          extensions: swoole-4.6.7
+          extensions: swoole-4.7.1
           coverage: pcov
           ini-values: pcov.directory=module
-      - run: composer install --no-interaction --prefer-dist
+      - 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 test:unit:ci
       - uses: actions/upload-artifact@v2
         if: ${{ matrix.php-version == '8.0' }}
@@ -74,7 +78,8 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        php-version: ['8.0']
+        php-version: ['8.0', '8.1']
+    continue-on-error: ${{ matrix.php-version == '8.1' }}
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
@@ -83,10 +88,13 @@ jobs:
         with:
           php-version: ${{ matrix.php-version }}
           tools: composer
-          extensions: swoole-4.6.7
+          extensions: swoole-4.7.1
           coverage: pcov
           ini-values: pcov.directory=module
-      - run: composer install --no-interaction --prefer-dist
+      - 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 test:db:sqlite:ci
       - uses: actions/upload-artifact@v2
         if: ${{ matrix.php-version == '8.0' }}
@@ -100,7 +108,8 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        php-version: ['8.0']
+        php-version: ['8.0', '8.1']
+    continue-on-error: ${{ matrix.php-version == '8.1' }}
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
@@ -111,16 +120,20 @@ jobs:
         with:
           php-version: ${{ matrix.php-version }}
           tools: composer
-          extensions: swoole-4.6.7
+          extensions: swoole-4.7.1
           coverage: none
-      - run: composer install --no-interaction --prefer-dist
+      - 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 test:db:mysql
 
   db-tests-maria:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        php-version: ['8.0']
+        php-version: ['8.0', '8.1']
+    continue-on-error: ${{ matrix.php-version == '8.1' }}
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
@@ -131,16 +144,20 @@ jobs:
         with:
           php-version: ${{ matrix.php-version }}
           tools: composer
-          extensions: swoole-4.6.7
+          extensions: swoole-4.7.1
           coverage: none
-      - run: composer install --no-interaction --prefer-dist
+      - 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 test:db:maria
 
   db-tests-postgres:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        php-version: ['8.0']
+        php-version: ['8.0', '8.1']
+    continue-on-error: ${{ matrix.php-version == '8.1' }}
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
@@ -151,16 +168,20 @@ jobs:
         with:
           php-version: ${{ matrix.php-version }}
           tools: composer
-          extensions: swoole-4.6.7
+          extensions: swoole-4.7.1
           coverage: none
-      - run: composer install --no-interaction --prefer-dist
+      - 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 test:db:postgres
 
   db-tests-ms:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        php-version: ['8.0']
+        php-version: ['8.0', '8.1']
+    continue-on-error: ${{ matrix.php-version == '8.1' }}
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
@@ -169,13 +190,25 @@ jobs:
       - name: Start database server
         run: docker-compose -f docker-compose.yml -f docker-compose.ci.yml up -d shlink_db_ms
       - name: Use PHP
+        if: ${{ matrix.php-version == '8.1' }}
         uses: shivammathur/setup-php@v2
         with:
           php-version: ${{ matrix.php-version }}
           tools: composer
-          extensions: swoole-4.6.7, pdo_sqlsrv-5.9.0
+          extensions: swoole-4.7.1, pdo_sqlsrv-5.10.0beta1
           coverage: none
-      - run: composer install --no-interaction --prefer-dist
+      - name: Use PHP
+        if: ${{ matrix.php-version != '8.1' }}
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php-version }}
+          tools: composer
+          extensions: swoole-4.7.1, pdo_sqlsrv-5.9.0
+          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
       - 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
@@ -184,7 +217,8 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        php-version: ['8.0']
+        php-version: ['8.0', '8.1']
+    continue-on-error: ${{ matrix.php-version == '8.1' }}
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
@@ -195,10 +229,13 @@ jobs:
         with:
           php-version: ${{ matrix.php-version }}
           tools: composer
-          extensions: swoole-4.6.7
+          extensions: swoole-4.7.1
           coverage: pcov
           ini-values: pcov.directory=module
-      - run: composer install --no-interaction --prefer-dist
+      - 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: bin/test/run-api-tests.sh
       - uses: actions/upload-artifact@v2
         if: ${{ matrix.php-version == '8.0' }}
@@ -216,8 +253,9 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        php-version: ['8.0']
+        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
@@ -226,10 +264,13 @@ jobs:
         with:
           php-version: ${{ matrix.php-version }}
           tools: composer
-          extensions: swoole-4.6.7
+          extensions: swoole-4.7.1
           coverage: pcov
           ini-values: pcov.directory=module
-      - run: composer install --no-interaction --prefer-dist
+      - 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
       - uses: actions/download-artifact@v2
         with:
           path: build
diff --git a/CHANGELOG.md b/CHANGELOG.md
index c3a12e21..46f386eb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com), and this
 ### Changed
 * [#1142](https://github.com/shlinkio/shlink/issues/1142) Replaced `doctrine/cache` package with `symfony/cache`.
 * [#1157](https://github.com/shlinkio/shlink/issues/1157) All routes now support CORS, not only rest ones.
+* [#1144](https://github.com/shlinkio/shlink/issues/1144) Added experimental builds under PHP 8.1.
 
 ### Deprecated
 * [#1164](https://github.com/shlinkio/shlink/issues/1164) Deprecated `SHORT_DOMAIN_HOST` and `SHORT_DOMAIN_SCHEMA` env vars. Use `DEFAULT_DOMAIN` and `USE_HTTPS=true|false` instead.
diff --git a/Dockerfile b/Dockerfile
index d2684545..aea95a86 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,9 +2,9 @@ FROM php:8.0.9-alpine3.14 as base
 
 ARG SHLINK_VERSION=latest
 ENV SHLINK_VERSION ${SHLINK_VERSION}
-ENV SWOOLE_VERSION 4.7.0
+ENV SWOOLE_VERSION 4.7.1
 ENV PDO_SQLSRV_VERSION 5.9.0
-ENV MS_ODBC_SQL_VERSION 17.5.2.1
+ENV MS_ODBC_SQL_VERSION 17.5.2.2
 ENV LC_ALL "C"
 
 WORKDIR /etc/shlink
diff --git a/data/infra/php.Dockerfile b/data/infra/php.Dockerfile
index 02e815b1..1503ddf2 100644
--- a/data/infra/php.Dockerfile
+++ b/data/infra/php.Dockerfile
@@ -3,7 +3,7 @@ MAINTAINER Alejandro Celaya <alejandro@alejandrocelaya.com>
 
 ENV APCU_VERSION 5.1.20
 ENV PDO_SQLSRV_VERSION 5.9.0
-ENV MS_ODBC_SQL_VERSION 17.5.2.1
+ENV MS_ODBC_SQL_VERSION 17.5.2.2
 
 RUN apk update
 
diff --git a/data/infra/swoole.Dockerfile b/data/infra/swoole.Dockerfile
index 3170729b..5b4fac1c 100644
--- a/data/infra/swoole.Dockerfile
+++ b/data/infra/swoole.Dockerfile
@@ -2,10 +2,10 @@ FROM php:8.0.9-alpine3.14
 MAINTAINER Alejandro Celaya <alejandro@alejandrocelaya.com>
 
 ENV APCU_VERSION 5.1.20
-ENV PDO_SQLSRV_VERSION 5.9.0
 ENV INOTIFY_VERSION 3.0.0
-ENV SWOOLE_VERSION 4.7.0
-ENV MS_ODBC_SQL_VERSION 17.5.2.1
+ENV SWOOLE_VERSION 4.7.1
+ENV PDO_SQLSRV_VERSION 5.9.0
+ENV MS_ODBC_SQL_VERSION 17.5.2.2
 
 RUN apk update
 
diff --git a/module/Core/src/ErrorHandler/NotFoundRedirectHandler.php b/module/Core/src/ErrorHandler/NotFoundRedirectHandler.php
index 44cd2ddd..57bc4c41 100644
--- a/module/Core/src/ErrorHandler/NotFoundRedirectHandler.php
+++ b/module/Core/src/ErrorHandler/NotFoundRedirectHandler.php
@@ -27,16 +27,9 @@ class NotFoundRedirectHandler implements MiddlewareInterface
         /** @var NotFoundType $notFoundType */
         $notFoundType = $request->getAttribute(NotFoundType::class);
         $authority = $request->getUri()->getAuthority();
-        $domainSpecificRedirect = $this->resolveDomainSpecificRedirect($authority, $notFoundType);
+        $redirectConfig = $this->domainService->findByAuthority($authority) ?? $this->redirectOptions;
+        $redirectResponse = $this->redirectResolver->resolveRedirectResponse($notFoundType, $redirectConfig);
 
-        return $domainSpecificRedirect
-            ?? $this->redirectResolver->resolveRedirectResponse($notFoundType, $this->redirectOptions)
-            ?? $handler->handle($request);
-    }
-
-    private function resolveDomainSpecificRedirect(string $authority, NotFoundType $notFoundType): ?ResponseInterface
-    {
-        $domain = $this->domainService->findByAuthority($authority);
-        return $domain === null ? null : $this->redirectResolver->resolveRedirectResponse($notFoundType, $domain);
+        return $redirectResponse ?? $handler->handle($request);
     }
 }
diff --git a/module/Core/test/ErrorHandler/NotFoundRedirectHandlerTest.php b/module/Core/test/ErrorHandler/NotFoundRedirectHandlerTest.php
index 0d257d8e..877e96b7 100644
--- a/module/Core/test/ErrorHandler/NotFoundRedirectHandlerTest.php
+++ b/module/Core/test/ErrorHandler/NotFoundRedirectHandlerTest.php
@@ -72,17 +72,18 @@ class NotFoundRedirectHandlerTest extends TestCase
             $domainService->findByAuthority(Argument::cetera())
                 ->willReturn(null)
                 ->shouldBeCalledOnce();
-            $resolver->resolveRedirectResponse(Argument::cetera())
-                ->willReturn(null)
-                ->shouldBeCalledOnce();
+            $resolver->resolveRedirectResponse(
+                Argument::type(NotFoundType::class),
+                Argument::type(NotFoundRedirectOptions::class),
+            )->willReturn(null)->shouldBeCalledOnce();
         }];
         yield 'non-redirecting domain' => [function (ObjectProphecy $domainService, ObjectProphecy $resolver): void {
             $domainService->findByAuthority(Argument::cetera())
                 ->willReturn(Domain::withAuthority(''))
                 ->shouldBeCalledOnce();
-            $resolver->resolveRedirectResponse(Argument::cetera())
+            $resolver->resolveRedirectResponse(Argument::type(NotFoundType::class), Argument::type(Domain::class))
                 ->willReturn(null)
-                ->shouldBeCalledTimes(2);
+                ->shouldBeCalledOnce();
         }];
     }