diff --git a/td/telegram/MessageContent.cpp b/td/telegram/MessageContent.cpp
index 4b18af595c85..2de289426a62 100644
--- a/td/telegram/MessageContent.cpp
+++ b/td/telegram/MessageContent.cpp
@@ -513,7 +513,7 @@ class MessageChatSetTtl final : public MessageContent {
 
 class MessageUnsupported final : public MessageContent {
  public:
-  static constexpr int32 CURRENT_VERSION = 37;
+  static constexpr int32 CURRENT_VERSION = 38;
   int32 version = CURRENT_VERSION;
 
   MessageUnsupported() = default;