diff --git a/src/Symfony/Component/Notifier/Bridge/Gitter/composer.json b/src/Symfony/Component/Notifier/Bridge/Gitter/composer.json
index 0cf0943ec096..8e5434f09985 100644
--- a/src/Symfony/Component/Notifier/Bridge/Gitter/composer.json
+++ b/src/Symfony/Component/Notifier/Bridge/Gitter/composer.json
@@ -17,7 +17,6 @@
     ],
     "require": {
         "php": ">=8.1",
-        "ext-json": "*",
         "symfony/http-client": "^5.4|^6.0",
         "symfony/notifier": "^6.2"
     },
diff --git a/src/Symfony/Component/Notifier/Bridge/Mercure/composer.json b/src/Symfony/Component/Notifier/Bridge/Mercure/composer.json
index 05ae5933c1c5..60997223e03c 100644
--- a/src/Symfony/Component/Notifier/Bridge/Mercure/composer.json
+++ b/src/Symfony/Component/Notifier/Bridge/Mercure/composer.json
@@ -17,7 +17,6 @@
     ],
     "require": {
         "php": ">=8.1",
-        "ext-json": "*",
         "symfony/mercure": "^0.5.2|^0.6",
         "symfony/notifier": "^6.2",
         "symfony/service-contracts": "^1.10|^2|^3"
diff --git a/src/Symfony/Component/Notifier/Bridge/Mobyt/composer.json b/src/Symfony/Component/Notifier/Bridge/Mobyt/composer.json
index 032c4437d035..f66c1982e07c 100644
--- a/src/Symfony/Component/Notifier/Bridge/Mobyt/composer.json
+++ b/src/Symfony/Component/Notifier/Bridge/Mobyt/composer.json
@@ -17,7 +17,6 @@
     ],
     "require": {
         "php": ">=8.1",
-        "ext-json": "*",
         "symfony/http-client": "^5.4|^6.0",
         "symfony/notifier": "^6.2"
     },
diff --git a/src/Symfony/Component/Notifier/Bridge/Sendinblue/composer.json b/src/Symfony/Component/Notifier/Bridge/Sendinblue/composer.json
index 95633479f41d..065f6ff0d49b 100644
--- a/src/Symfony/Component/Notifier/Bridge/Sendinblue/composer.json
+++ b/src/Symfony/Component/Notifier/Bridge/Sendinblue/composer.json
@@ -17,7 +17,6 @@
     ],
     "require": {
         "php": ">=8.1",
-        "ext-json": "*",
         "symfony/http-client": "^5.4|^6.0",
         "symfony/notifier": "^6.2"
     },
diff --git a/src/Symfony/Component/Notifier/Bridge/Sinch/composer.json b/src/Symfony/Component/Notifier/Bridge/Sinch/composer.json
index 296eff992250..e56fba8cc535 100644
--- a/src/Symfony/Component/Notifier/Bridge/Sinch/composer.json
+++ b/src/Symfony/Component/Notifier/Bridge/Sinch/composer.json
@@ -17,7 +17,6 @@
     ],
     "require": {
         "php": ">=8.1",
-        "ext-json": "*",
         "symfony/http-client": "^5.4|^6.0",
         "symfony/notifier": "^6.2"
     },
diff --git a/src/Symfony/Component/Notifier/Bridge/TurboSms/composer.json b/src/Symfony/Component/Notifier/Bridge/TurboSms/composer.json
index edf0d509bd9a..05210a985a3f 100644
--- a/src/Symfony/Component/Notifier/Bridge/TurboSms/composer.json
+++ b/src/Symfony/Component/Notifier/Bridge/TurboSms/composer.json
@@ -17,7 +17,6 @@
     ],
     "require": {
         "php": ">=8.1",
-        "ext-json": "*",
         "symfony/http-client": "^5.4|^6.0",
         "symfony/notifier": "^6.2",
         "symfony/polyfill-mbstring": "^1.0"