diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 7796b66..497faec 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -1,44 +1,45 @@
 name: Tests
 
 on:
-  push:
-    branches: [master]
-  pull_request:
-    branches: [master]
-  schedule:
-    - cron: "0 7 * * 1"
+    push:
+        branches: [master]
+    pull_request:
+        branches: [master]
+    schedule:
+        - cron: '0 7 * * 1'
 
 jobs:
-  unit-tests:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        php: ["7.4", "8.0", "8.1"]
-        sf: ["5.4.*", "6.0.*", "6.1.*"]
-        exclude:
-          - php: "7.4"
-            sf: "6.1.*"
-          - php: "8.0"
-            sf: "6.1.*"
-          - php: "7.4"
-            sf: "6.0.*"
-    steps:
-      - uses: actions/checkout@v2
-      - uses: php-actions/composer@v6
-        with:
-          php_version: "${{ matrix.php }}"
-          command: require symfony/serializer:${{ matrix.sf }} --no-update
-      - uses: php-actions/composer@v6
-        with:
-          php_version: "${{ matrix.php }}"
-          command: update
-      - uses: php-actions/phpunit@v3
-        with:
-          configuration: phpunit.xml.dist
-          memory_limit: 256M
-          php_version: "${{ matrix.php }}"
-      - uses: php-actions/phpstan@v3
-        with:
-          php_version: "${{ matrix.php }}"
-          level: max
-          path: src/
+    unit-tests:
+        runs-on: ubuntu-latest
+        strategy:
+            matrix:
+                php: ['7.4', '8.0', '8.1']
+                sf: ['5.4.*', '6.4.*', '7.0.*']
+                exclude:
+                    - php: '7.4'
+                      sf: '6.4.*'
+                    - php: '8.0'
+                      sf: '6.4.*'
+                    - php: '8.1'
+                      sf: '7.0.*'
+        steps:
+            - uses: actions/checkout@v2
+            - uses: php-actions/composer@v6
+              with:
+                  php_version: '${{ matrix.php }}'
+                  command: require symfony/serializer:${{ matrix.sf }} --no-update
+            - uses: php-actions/composer@v6
+              with:
+                  php_version: '${{ matrix.php }}'
+                  command: update
+            - uses: php-actions/phpunit@v3
+              with:
+                  configuration: phpunit.xml.dist
+                  memory_limit: 256M
+                  php_version: '${{ matrix.php }}'
+                  version: 9.5
+            - uses: php-actions/phpstan@v3
+              with:
+                  php_version: '${{ matrix.php }}'
+                  level: max
+                  path: src/
diff --git a/composer.json b/composer.json
index d94461c..f8b80e2 100644
--- a/composer.json
+++ b/composer.json
@@ -13,12 +13,12 @@
     }
   },
   "require": {
-    "php": "^7.4|^8.0|^8.1",
+    "php": "^7.4|^8.0",
     "ramsey/uuid": "^4.0",
-    "symfony/serializer": "^5.4|^6.0"
+    "symfony/serializer": "^5.4|^6.0|^7.0"
   },
   "require-dev": {
-    "symfony/property-access": "^5.4|^6.0",
+    "symfony/property-access": "^5.4|^6.0|^7.0",
     "phpdocumentor/reflection-docblock": "^5.3",
     "phpunit/phpunit": "^9.5",
     "phpstan/phpstan": "^1.8"
diff --git a/src/UuidDenormalizer.php b/src/UuidDenormalizer.php
index 203087e..621dd84 100644
--- a/src/UuidDenormalizer.php
+++ b/src/UuidDenormalizer.php
@@ -15,15 +15,11 @@
 class UuidDenormalizer implements DenormalizerInterface
 {
     /**
-     * {@inheritdoc}
-     *
      * @param array<mixed> $context
      *
      * @throws UnexpectedValueException
-     *
-     * @return UuidInterface|null
      */
-    public function denormalize($data, $type, $format = null, array $context = [])
+    public function denormalize(mixed $data, string $type, string $format = null, array $context = []): ?UuidInterface
     {
         if (null === $data) {
             return null;
@@ -37,12 +33,17 @@ public function denormalize($data, $type, $format = null, array $context = [])
     }
 
     /**
-     * {@inheritdoc}
-     *
      * @param array<mixed> $context
      */
-    public function supportsDenormalization($data, string $type, string $format = null, array $context = [])
+    public function supportsDenormalization($data, string $type, string $format = null, array $context = []): bool
     {
         return Uuid::class === $type || UuidInterface::class === $type;
     }
+
+    public function getSupportedTypes(?string $format): array
+    {
+        return [
+            UuidInterface::class => true,
+        ];
+    }
 }
diff --git a/src/UuidNormalizer.php b/src/UuidNormalizer.php
index 9ed3aad..e414233 100644
--- a/src/UuidNormalizer.php
+++ b/src/UuidNormalizer.php
@@ -13,25 +13,25 @@
 class UuidNormalizer implements NormalizerInterface
 {
     /**
-     * {@inheritdoc}
-     *
-     * @param array<mixed>  $context
-     * @param UuidInterface $object
-     *
-     * @return string
+     * @param array<mixed> $context
      */
-    public function normalize($object, $format = null, array $context = [])
+    public function normalize(mixed $object, $format = null, array $context = []): string
     {
         return $object->toString();
     }
 
     /**
-     * {@inheritdoc}
-     *
      * @param array<mixed> $context
      */
-    public function supportsNormalization($data, $format = null, array $context = [])
+    public function supportsNormalization(mixed $data, $format = null, array $context = []): bool
     {
         return $data instanceof UuidInterface;
     }
+
+    public function getSupportedTypes(?string $format): array
+    {
+        return [
+            UuidInterface::class => true,
+        ];
+    }
 }