diff --git a/src/chainparams.cpp b/src/chainparams.cpp
index 99671d196df..cb27996793c 100644
--- a/src/chainparams.cpp
+++ b/src/chainparams.cpp
@@ -105,7 +105,7 @@ public:
         pchMessageStart[3] = 0xd9;
         nDefaultPort = 8333;
         nPruneAfterHeight = 100000;
-        m_assumed_blockchain_size = 420;
+        m_assumed_blockchain_size = 460;
         m_assumed_chain_state_size = 6;
 
         genesis = CreateGenesisBlock(1231006505, 2083236893, 0x1d00ffff, 1, 50 * COIN);