diff --git a/mirai-core-api/src/commonMain/kotlin/message/MessageSerializer.kt b/mirai-core-api/src/commonMain/kotlin/message/MessageSerializer.kt
index 5daf081fd..b48c64902 100644
--- a/mirai-core-api/src/commonMain/kotlin/message/MessageSerializer.kt
+++ b/mirai-core-api/src/commonMain/kotlin/message/MessageSerializer.kt
@@ -130,7 +130,6 @@ internal object MessageSerializerImpl : MessageSerializer {
 
     @Synchronized
     override fun clearRegisteredSerializers() {
-        TODO("Not yet implemented")
+        serializersModule = builtInSerializersModule
     }
-
 }
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