diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e309c31e..51b64f95 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -151,6 +151,10 @@ jobs:
                 name: Load fixtures in test application
                 run: (cd tests/Application && bin/console sylius:fixtures:load -n)
 
+            -
+                name: Validate composer.json
+                run: composer validate --ansi --strict
+
             -
                 name: Run analysis
                 run: composer analyse
diff --git a/composer.json b/composer.json
index 023726dd..df0a9933 100644
--- a/composer.json
+++ b/composer.json
@@ -10,7 +10,7 @@
         "phpseclib/phpseclib": "^2.0",
         "polishsymfonycommunity/symfony-mocker-container": "^1.0",
         "sylius-labs/doctrine-migrations-extra-bundle": "^0.1.4 || ^0.2",
-        "sylius/sylius": "~1.11.0 || v1.12.0-rc.1",
+        "sylius/sylius": "~1.11.0 || 1.12.x-dev",
         "symfony/mailer": "^5.4 || ^6.0"
     },
     "require-dev": {