diff --git a/td/telegram/MessageContent.cpp b/td/telegram/MessageContent.cpp
index fe58b84d8..c8fb9ec52 100644
--- a/td/telegram/MessageContent.cpp
+++ b/td/telegram/MessageContent.cpp
@@ -500,7 +500,7 @@ class MessageChatSetTtl final : public MessageContent {
 
 class MessageUnsupported final : public MessageContent {
  public:
-  static constexpr int32 CURRENT_VERSION = 30;
+  static constexpr int32 CURRENT_VERSION = 31;
   int32 version = CURRENT_VERSION;
 
   MessageUnsupported() = default;