diff --git a/api/api-ktor/src/commonMain/kotlin/app/meetacy/sdk/engine/ktor/KtorMeetacyEngine.kt b/api/api-ktor/src/commonMain/kotlin/app/meetacy/sdk/engine/ktor/KtorMeetacyEngine.kt
index 192f54e..6f942b8 100644
--- a/api/api-ktor/src/commonMain/kotlin/app/meetacy/sdk/engine/ktor/KtorMeetacyEngine.kt
+++ b/api/api-ktor/src/commonMain/kotlin/app/meetacy/sdk/engine/ktor/KtorMeetacyEngine.kt
@@ -35,9 +35,13 @@ import kotlinx.serialization.json.Json
 public class KtorMeetacyEngine(
     private val baseUrl: Url,
     httpClient: HttpClient = HttpClient(),
-    private val json: Json = Json,
+    json: Json = Json,
 ) : MeetacyRequestsEngine {
 
+    private val json = Json(json) {
+        ignoreUnknownKeys = true
+    }
+
     private val httpClient = httpClient.config {
         expectSuccess = true
         install(WebSockets)