diff --git a/package-lock.json b/package-lock.json
index 78c9633..a50327c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,7 @@
       "devDependencies": {
         "@prettier/plugin-php": "^0.24.0",
         "@seamapi/nextlove-sdk-generator": "^1.19.6",
-        "@seamapi/types": "1.670.0",
+        "@seamapi/types": "1.673.0",
         "del": "^7.1.0",
         "prettier": "^3.0.0"
       }
@@ -456,9 +456,9 @@
       }
     },
     "node_modules/@seamapi/types": {
-      "version": "1.670.0",
-      "resolved": "https://registry.npmjs.org/@seamapi/types/-/types-1.670.0.tgz",
-      "integrity": "sha512-Nm7FsubpITwFg/QqlLBZoXMmNE2EvWDvbK+wW0pQ++7JrGJCaypopkpF2ASJHEwI7IcRlAsG5MZWmz+O3oeCqQ==",
+      "version": "1.673.0",
+      "resolved": "https://registry.npmjs.org/@seamapi/types/-/types-1.673.0.tgz",
+      "integrity": "sha512-OnqrVBIr1qgw1s7ZA9jQNbt/tV21fUmFx6aOZ2bjI6byUE0vJm7xDDLB4MTCAAUZRefXXi8xyhq2K5zs+8oXgQ==",
       "dev": true,
       "license": "MIT",
       "engines": {
diff --git a/package.json b/package.json
index e09ccce..8d3ecda 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
   "devDependencies": {
     "@prettier/plugin-php": "^0.24.0",
     "@seamapi/nextlove-sdk-generator": "^1.19.6",
-    "@seamapi/types": "1.670.0",
+    "@seamapi/types": "1.673.0",
     "del": "^7.1.0",
     "prettier": "^3.0.0"
   }
diff --git a/src/Objects/PhoneSession.php b/src/Objects/PhoneSession.php
index 4556199..b392b59 100644
--- a/src/Objects/PhoneSession.php
+++ b/src/Objects/PhoneSession.php
@@ -10,6 +10,7 @@ public static function from_json(mixed $json): PhoneSession|null
             return null;
         }
         return new self(
+            is_sandbox_workspace: $json->is_sandbox_workspace,
             provider_sessions: array_map(
                 fn($p) => PhoneSessionProviderSessions::from_json($p),
                 $json->provider_sessions ?? [],
@@ -22,6 +23,7 @@ public static function from_json(mixed $json): PhoneSession|null
     }
 
     public function __construct(
+        public bool $is_sandbox_workspace,
         public array $provider_sessions,
         public PhoneSessionUserIdentity $user_identity,
         public string $workspace_id,