diff --git a/lib/bitcoin.py b/lib/bitcoin.py
index 739847cb2..94f3e4fc7 100644
--- a/lib/bitcoin.py
+++ b/lib/bitcoin.py
@@ -63,7 +63,7 @@ def set_testnet():
 ################################## transactions
 
 FEE_STEP = 10000
-MAX_FEE_RATE = 100000
+MAX_FEE_RATE = 300000
 FEE_TARGETS = [25, 10, 5, 2]
 
 COINBASE_MATURITY = 100