diff --git a/composer.json b/composer.json
index 86881ac4..c4c38e6a 100644
--- a/composer.json
+++ b/composer.json
@@ -14,7 +14,7 @@
         "ext-json": "*",
         "composer-plugin-api": "^2.0",
         "drush/drush": "^11|^12|^13",
-        "symfony/yaml": "^6|^7",
+        "symfony/yaml": "6.4.12",
         "twig/twig": "^3",
         "vlucas/phpdotenv": "^4|^5"
     },
diff --git a/drainpipe-dev/composer.json b/drainpipe-dev/composer.json
index 4020eabb..dfd39b3c 100644
--- a/drainpipe-dev/composer.json
+++ b/drainpipe-dev/composer.json
@@ -24,8 +24,8 @@
         "phpspec/prophecy-phpunit": "^2",
         "phpstan/phpstan-deprecation-rules": "^1.2.0",
         "phpunit/phpunit": "^9|^10",
-        "symfony/phpunit-bridge": "^6|^7",
-        "symfony/yaml": "^6|^7",
+        "symfony/phpunit-bridge": "6.4.11",
+        "symfony/yaml": "6.4.12",
         "tijsverkoyen/convert-to-junit-xml": "^1.11.0",
         "vincentlanglet/twig-cs-fixer": "^3.1.0"
     },