diff --git a/src/main/Config.cpp b/src/main/Config.cpp
index d475d802c5..0aa888bc7f 100644
--- a/src/main/Config.cpp
+++ b/src/main/Config.cpp
@@ -101,7 +101,7 @@ Config::Config() : NODE_SEED(SecretKey::random())
     MAXIMUM_LEDGER_CLOSETIME_DRIFT = 50;
 
     OVERLAY_PROTOCOL_MIN_VERSION = 13;
-    OVERLAY_PROTOCOL_VERSION = 14;
+    OVERLAY_PROTOCOL_VERSION = 15;
 
     VERSION_STR = STELLAR_CORE_VERSION;