diff --git a/composer.json b/composer.json
index 7e68d8e5..a4573ea9 100644
--- a/composer.json
+++ b/composer.json
@@ -111,7 +111,7 @@
         "drupal/jsonapi_extras": "^3.21",
         "drupal/login_history": "^2.0",
         "drupal/login_tracker": "^2.0",
-        "drupal/mailjet": "^4.0",
+        "drupal/mailjet": "3.0.x-dev@dev",
         "drupal/maillog": "^1.1",
         "drupal/masquerade": "^2.0",
         "drupal/maxlength": "^2.1",
@@ -253,7 +253,6 @@
               "remove flag hooks to allow site to be accessible again https://www.drupal.org/project/flag/issues/3200806": "./patches/flag-commenthooks.patch"
             },
             "drupal/mailjet": {
-              "DrupalmailjetControllerMailjetRegisterController::redirectRegister() does not exist https://www.drupal.org/project/mailjet/issues/3450474": "https://www.drupal.org/files/issues/2024-05-29/mailjet-15615025-5.patch"
             },
             "drupal/pwa": {
               "Manifest doesn't have a maskable icon https://www.drupal.org/project/pwa/issues/3165433": "https://www.drupal.org/files/issues/2024-03-10/manifest-doesnt-have-a-maskable-icon-error-3165433-20.patch",
@@ -294,7 +293,8 @@
             "undefined index name 16 https://www.drupal.org/project/field_group/issues/3064890" : "https://www.drupal.org/files/issues/2020-08-10/field_group-undefined-index-name-3064890-16.patch"
           },
           "drupal/mailjet": {
-            "https://www.drupal.org/project/mailjet/issues/3325412":"https://www.drupal.org/files/issues/2022-12-05/mailjet-list_instead_of_listid.patch"
+            "https://www.drupal.org/project/mailjet/issues/3325412":"https://www.drupal.org/files/issues/2022-12-05/mailjet-list_instead_of_listid.patch",
+            "DrupalmailjetControllerMailjetRegisterController::redirectRegister() does not exist https://www.drupal.org/project/mailjet/issues/3450474": "https://www.drupal.org/files/issues/2024-05-29/mailjet-15615025-5.patch"
           },
           "drupal/term_reference_tree": {
             "Term Reference Tree: Re-implement Track List https://www.drupal.org/project/term_reference_tree/issues/3064280": "https://www.drupal.org/files/issues/2022-02-07/3064280_bring_back_tracklist-16.patch"
diff --git a/composer.lock b/composer.lock
index 4ae5eb62..d34dad69 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "88e9aa0570e190c7938560e3fbe511e8",
+    "content-hash": "079be50913e11cbe0473238bb3262ccc",
     "packages": [
         {
             "name": "algolia/places",
@@ -9026,20 +9026,14 @@
         },
         {
             "name": "drupal/mailjet",
-            "version": "4.0.0",
+            "version": "dev-3.0.x",
             "source": {
                 "type": "git",
                 "url": "https://git.drupalcode.org/project/Mailjet.git",
-                "reference": "4.0.0"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://ftp.drupal.org/files/projects/mailjet-4.0.0.zip",
-                "reference": "4.0.0",
-                "shasum": "f1a8cf63bb1a77c9ea6038f32446e53be603bf69"
+                "reference": "b5db59b5482b4c59d7550b646a67a887d9bce68d"
             },
             "require": {
-                "drupal/core": "^8.8 || ^9 || ^10",
+                "drupal/core": "^9 || ^10",
                 "mailjet/mailjet-apiv3-php": "^1.5",
                 "phpmailer/phpmailer": "^6.0.7"
             },
@@ -9051,12 +9045,15 @@
             },
             "type": "drupal-module",
             "extra": {
+                "branch-alias": {
+                    "dev-3.0.x": "3.0.x-dev"
+                },
                 "drupal": {
-                    "version": "4.0.0",
-                    "datestamp": "1717934119",
+                    "version": "3.0.x-dev",
+                    "datestamp": "1720356068",
                     "security-coverage": {
-                        "status": "covered",
-                        "message": "Covered by Drupal's security advisory policy"
+                        "status": "not-covered",
+                        "message": "Dev releases are not covered by Drupal security advisories."
                     }
                 }
             },
@@ -23034,6 +23031,7 @@
         "drupal/config_split": 10,
         "drupal/flag": 10,
         "drupal/flag_lists": 5,
+        "drupal/mailjet": 20,
         "drupal/pwa": 10,
         "drupal/rules": 20,
         "drupal/search_api_page": 20,
@@ -23070,5 +23068,5 @@
     "platform-overrides": {
         "php": "8.1"
     },
-    "plugin-api-version": "2.6.0"
+    "plugin-api-version": "2.3.0"
 }