diff --git a/app/Libraries/ExactTargetService.php b/app/Libraries/ExactTargetService.php
index 7254b7dc8e..2e3f8e6411 100644
--- a/app/Libraries/ExactTargetService.php
+++ b/app/Libraries/ExactTargetService.php
@@ -2,11 +2,9 @@
 
 namespace App\Libraries;
 
+use Illuminate\Support\Facades\Http;
 use Illuminate\Support\Str;
 use App\Models\ExactTargetList;
-use FuelSdk\ET_Client;
-use FuelSdk\ET_DataExtension_Row;
-use FuelSdk\ET_Subscriber;
 
 class ExactTargetService
 {
@@ -42,14 +40,9 @@ public function __construct(
      */
     public function subscribe($alsoRemove = true)
     {
-        $client = $this->getEtClient();
-
-        // Add the user to a data extension
-        $deRow = new ET_DataExtension_Row();
-
-        $deRow->authStub = $client;
-        $deRow->props = [
-            'Email' => $this->email,
+        $accessToken = $this->getAccessToken();
+        $dataExtensionKey = config('exact-target.customer_key');
+        $props = [
             'OptMuseum' => 'True',
         ];
 
@@ -62,65 +55,35 @@ public function subscribe($alsoRemove = true)
 
             foreach ($allLists as $list) {
                 if (in_array($list, $this->list)) {
-                    $deRow->props[$list] = 'True';
+                    $props[$list] = 'True';
                 } elseif ($alsoRemove) {
-                    $deRow->props[$list] = 'False';
+                    $props[$list] = 'False';
                 }
             }
         }
 
         if ($this->wasFormPrefilled || $this->firstName) {
-            $deRow->props['FirstName'] = $this->firstName;
+            $props['FirstName'] = $this->firstName;
         }
 
         if ($this->wasFormPrefilled || $this->lastName) {
-            $deRow->props['LastName'] = $this->lastName;
-        }
-
-        $deRow->CustomerKey = config('exact-target.customer_key');
-        $deRow->Name = config('exact-target.name');
-
-        $response = $deRow->post();
-
-        // If it fails, try patch
-        if (!$response->status) {
-            $response = $deRow->patch();
-
-            if (!$response->status) {
-                return $response;
-            }
-        }
-
-        // Add the subscriber
-        $subscriber = new ET_Subscriber();
-        $subscriber->authStub = $client;
-        $subscriber->props = [
-            'EmailAddress' => $this->email,
-            'SubscriberKey' => $this->email,
-        ];
-        $response = $subscriber->post();
-
-        if (!$response->status) {
-            $error = $response->results[0]->ErrorMessage ?? '';
-            $status = $response->results[0]->StatusMessage ?? '';
-
-            if (
-                Str::startsWith($error, 'Violation of PRIMARY KEY constraint')
-                || Str::startsWith($status, 'The subscriber is already on the list')
-            ) {
-                // Email has been previously subscribed, so proceed
-            } else {
-                return $response;
-            }
+            $props['LastName'] = $this->lastName;
         }
 
-        // Then patch it with some additional properties
-        $subscriber->props['Status'] = 'Active';
-        $subscriber->Name = 'Museum Business Unit';
-        $response = $subscriber->patch();
+        $response = Http::withToken($accessToken)->post(
+            config('exact-target.client.baseUrl') . "hub/v1/dataeventsasync/key:$dataExtensionKey/rowset",
+            [
+                [
+                    'keys' => [
+                        'Email' => $this->email
+                    ],
+                    'values' => $props
+                ]
+            ]
+        );
 
-        if (!$response->status) {
-            return $response;
+        if ($response->failed()) {
+            return $response->json();
         }
 
         return true;
@@ -131,38 +94,21 @@ public function subscribe($alsoRemove = true)
      */
     public function unsubscribe()
     {
-        $client = $this->getEtClient();
+        $accessToken = $this->getAccessToken();
+        $dataExtensionKey = config('exact-target.customer_key');
 
         // Delete the user from the data extension
-        $deRow = new ET_DataExtension_Row();
-
-        $deRow->authStub = $client;
-        $deRow->props = [
-            'Email' => $this->email,
-        ];
-
-        $deRow->CustomerKey = config('exact-target.customer_key');
-        $deRow->Name = config('exact-target.name');
-
-        $response = $deRow->delete();
-
-        if (!$response->status) {
-            return $response;
-        }
-
-        // Set the subscriber to Unsubscribed
-        $subscriber = new ET_Subscriber();
-        $subscriber->authStub = $client;
-        $subscriber->props = [
-            'EmailAddress' => $this->email,
-            'SubscriberKey' => $this->email,
-            'Status' => 'Unsubscribed'
-        ];
-        $subscriber->Name = 'Museum Business Unit';
-        $response = $subscriber->patch();
+        $response = Http::withToken($accessToken)->delete(
+            config('exact-target.client.baseUrl') . "hub/v1/dataevents/key:$dataExtensionKey/rowset",
+            [
+                'keys' => [
+                    'Email' => $this->email
+                ]
+            ]
+        );
 
-        if (!$response->status) {
-            return $response;
+        if ($response->failed()) {
+            return $response->json();
         }
 
         return true;
@@ -170,69 +116,44 @@ public function unsubscribe()
 
     public function get()
     {
-        $client = new ET_Client(false, config('app.debug'), config('exact-target.client'));
-
-        $deRow = new ET_DataExtension_Row();
-        $deRow->authStub = $client;
-
-        // Select
-        $allLists = ExactTargetList::getList()->keys()->all();
-        $fields = array_merge(
+        $accessToken = $this->getAccessToken();
+        $dataExtensionKey = config('exact-target.customer_key');
+        $fields = array_merge([
+            'Email',
+            'FirstName',
+            'LastName',
+        ], ExactTargetList::getList()->keys()->all());
+
+        $response = Http::withToken($accessToken)->get(
+            config('exact-target.client.baseUrl') . "data/v1/customobjectdata/key:$dataExtensionKey/rowset",
             [
-                'Email',
-                'FirstName',
-                'LastName',
-            ],
-            $allLists
+                'fields' => implode(',', $fields),
+                'filter' => [
+                    'Property' => 'Email',
+                    'SimpleOperator' => 'equals',
+                    'Value' => $this->email
+                ]
+            ]
         );
 
-        $deRow->props = $fields;
-
-        // From (e.g. "All Subscribers Master")
-        $deRow->Name = config('exact-target.customer_key');
-
-        // Where
-        $deRow->filter = [
-            'Property' => 'Email',
-            'SimpleOperator' => 'equals',
-            'Value' => $this->email,
-        ];
-
-        return $deRow->get();
+        return $response->json();
     }
 
-    protected function getEtClient()
+    protected function getAccessToken()
     {
         $auth_url = config('exact-target.client.baseAuthUrl');
-        $clientId = config('exact-target.client.clientid');
-        $clientSecret = config('exact-target.client.clientsecret');
 
-        $api = new \GuzzleHttp\Client();
+        $response = Http::asForm()->post($auth_url . "v2/token", [
+            'grant_type' => 'client_credentials',
+            'client_id' => config('exact-target.client.clientid'),
+            'client_secret' => config('exact-target.client.clientsecret'),
+        ]);
 
-        $result = $api->request(
-            'POST',
-            $auth_url . '/v2/token',
-            [
-                'json' => [
-                    'client_id' => $clientId,
-                    'client_secret' => $clientSecret,
-                    'grant_type' => 'client_credentials',
-                ]
-            ]
-        );
 
-        $tokenInfo = json_decode($result->getBody()->getContents(), true);
+        if ($response->failed()) {
+            throw new \Exception('Unable to retrieve access token');
+        }
 
-        return new ET_Client(
-            true,
-            config('app.debug'),
-            array_merge(
-                config('exact-target.client'),
-                [
-                    'authorizationCode' => $tokenInfo['access_token'],
-                    'scope' => $tokenInfo['scope'],
-                ]
-            )
-        );
+        return $response->json()['access_token'];
     }
 }
diff --git a/composer.json b/composer.json
index d9bb649926..375896ba32 100644
--- a/composer.json
+++ b/composer.json
@@ -14,10 +14,6 @@
             "type": "vcs",
             "url": "/~https://github.com/art-institute-of-chicago/data-hub-foundation.git"
         },
-        {
-            "type": "vcs",
-            "url": "/~https://github.com/axsweet/FuelSDK-PHP.git"
-        },
         {
             "type": "package",
             "package": {
@@ -61,7 +57,6 @@
         "michelf/php-smartypants": "^1.8",
         "ramsey/uuid": "^4.0",
         "rlanvin/php-rrule": "^2.0",
-        "salesforce-mc/fuel-sdk-php": "dev-master",
         "sendgrid/sendgrid": "^8.1",
         "sentry/sentry-laravel": "^4.9",
         "spatie/calendar-links": "^1.0",
diff --git a/composer.lock b/composer.lock
index 466248822c..ba56c05c1d 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": "9061b70c83062135f3beada78a896b01",
+    "content-hash": "69dd7545eae675260459358169e381ed",
     "packages": [
         {
             "name": "aic/data-hub-foundation",
@@ -6772,154 +6772,6 @@
             },
             "time": "2023-06-07T13:15:59+00:00"
         },
-        {
-            "name": "robrichards/wse-php",
-            "version": "2.0.3",
-            "source": {
-                "type": "git",
-                "url": "/~https://github.com/robrichards/wse-php.git",
-                "reference": "f705f0242ab5f9ea69570955d2ebc64a902b12eb"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/robrichards/wse-php/zipball/f705f0242ab5f9ea69570955d2ebc64a902b12eb",
-                "reference": "f705f0242ab5f9ea69570955d2ebc64a902b12eb",
-                "shasum": ""
-            },
-            "require": {
-                "php": ">= 5.3",
-                "robrichards/xmlseclibs": ">=3.0.2"
-            },
-            "type": "library",
-            "autoload": {
-                "psr-4": {
-                    "RobRichards\\WsePhp\\": "src"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "BSD-3-Clause"
-            ],
-            "authors": [
-                {
-                    "name": "Rob Richards",
-                    "homepage": "http://www.cdatazone.org/",
-                    "role": "Main developer"
-                }
-            ],
-            "description": "Libraries for adding WS-* support to ext/soap in PHP.",
-            "homepage": "/~https://github.com/robrichards/wse-php",
-            "keywords": [
-                "WS-Security",
-                "soap",
-                "ws-addressing"
-            ],
-            "support": {
-                "issues": "/~https://github.com/robrichards/wse-php/issues",
-                "source": "/~https://github.com/robrichards/wse-php/tree/master"
-            },
-            "time": "2019-01-03T15:37:08+00:00"
-        },
-        {
-            "name": "robrichards/xmlseclibs",
-            "version": "3.1.1",
-            "source": {
-                "type": "git",
-                "url": "/~https://github.com/robrichards/xmlseclibs.git",
-                "reference": "f8f19e58f26cdb42c54b214ff8a820760292f8df"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/robrichards/xmlseclibs/zipball/f8f19e58f26cdb42c54b214ff8a820760292f8df",
-                "reference": "f8f19e58f26cdb42c54b214ff8a820760292f8df",
-                "shasum": ""
-            },
-            "require": {
-                "ext-openssl": "*",
-                "php": ">= 5.4"
-            },
-            "type": "library",
-            "autoload": {
-                "psr-4": {
-                    "RobRichards\\XMLSecLibs\\": "src"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "BSD-3-Clause"
-            ],
-            "description": "A PHP library for XML Security",
-            "homepage": "/~https://github.com/robrichards/xmlseclibs",
-            "keywords": [
-                "security",
-                "signature",
-                "xml",
-                "xmldsig"
-            ],
-            "support": {
-                "issues": "/~https://github.com/robrichards/xmlseclibs/issues",
-                "source": "/~https://github.com/robrichards/xmlseclibs/tree/3.1.1"
-            },
-            "time": "2020-09-05T13:00:25+00:00"
-        },
-        {
-            "name": "salesforce-mc/fuel-sdk-php",
-            "version": "dev-master",
-            "source": {
-                "type": "git",
-                "url": "/~https://github.com/axsweet/FuelSDK-PHP.git",
-                "reference": "a5be7ca56420b9cbc6114faff4f6d1846e5d9c53"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/axsweet/FuelSDK-PHP/zipball/a5be7ca56420b9cbc6114faff4f6d1846e5d9c53",
-                "reference": "a5be7ca56420b9cbc6114faff4f6d1846e5d9c53",
-                "shasum": ""
-            },
-            "require": {
-                "ext-curl": "*",
-                "ext-openssl": "*",
-                "ext-soap": "*",
-                "firebase/php-jwt": ">=5.0.0",
-                "php": ">=5.6.24",
-                "robrichards/wse-php": "2.0.3"
-            },
-            "require-dev": {
-                "dompdf/dompdf": "0.6",
-                "phpdocumentor/phpdocumentor": "2.8.0",
-                "phpunit/phpunit": ">=5.7.20"
-            },
-            "default-branch": true,
-            "type": "library",
-            "autoload": {
-                "psr-4": {
-                    "FuelSdk\\": "src/"
-                }
-            },
-            "autoload-dev": {
-                "psr-4": {
-                    "FuelSdk\\Test\\": "tests/"
-                }
-            },
-            "license": [
-                "MIT"
-            ],
-            "description": "Salesforce Marketing Cloud Fuel SDK for PHP",
-            "homepage": "https://developer.salesforce.com/docs/atlas.en-us.mc-sdks.meta/mc-sdks/index-sdk.htm",
-            "keywords": [
-                "exacttarget",
-                "fuel sdk",
-                "fuel-sdk",
-                "marketing cloud",
-                "php sdk",
-                "salesforce",
-                "sdk"
-            ],
-            "support": {
-                "source": "/~https://github.com/axsweet/FuelSDK-PHP/tree/master"
-            },
-            "time": "2021-10-26T20:46:29+00:00"
-        },
         {
             "name": "sebastian/diff",
             "version": "5.0.3",
@@ -14816,14 +14668,12 @@
     ],
     "aliases": [],
     "minimum-stability": "stable",
-    "stability-flags": {
-        "salesforce-mc/fuel-sdk-php": 20
-    },
+    "stability-flags": [],
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
         "php": "^8.1"
     },
-    "platform-dev": {},
-    "plugin-api-version": "2.6.0"
+    "platform-dev": [],
+    "plugin-api-version": "2.3.0"
 }