diff --git a/composer.json b/composer.json
index 55ce33a6..c5970850 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": "6.4.8",
         "twig/twig": "^3",
         "vlucas/phpdotenv": "^4|^5"
     },
diff --git a/drainpipe-dev/composer.json b/drainpipe-dev/composer.json
index 8ad414fa..c54ef9e5 100644
--- a/drainpipe-dev/composer.json
+++ b/drainpipe-dev/composer.json
@@ -18,10 +18,10 @@
         "mikey179/vfsstream": "^1.6.11",
         "mockery/mockery": "^1.6.12",
         "behat/mink": "^1.11.0",
-        "symfony/phpunit-bridge": "^6|^7",
+        "symfony/phpunit-bridge": "6.4.9",
         "lullabot/drainpipe": "*",
         "mglaman/phpstan-drupal": "^1.2.11",
-        "symfony/yaml": "^6|^7",
+        "symfony/yaml": "6.4.8",
         "drupal/coder": "^8.3.24",
         "behat/mink-browserkit-driver": "^2.2.0",
         "tijsverkoyen/convert-to-junit-xml": "^1.11.0",