diff --git a/basicswap/bin/prepare.py b/basicswap/bin/prepare.py
index db37b0a..f9e0a6b 100755
--- a/basicswap/bin/prepare.py
+++ b/basicswap/bin/prepare.py
@@ -53,8 +53,8 @@ PARTICL_LINUX_EXTRA = os.getenv("PARTICL_LINUX_EXTRA", "nousb")
 LITECOIN_VERSION = os.getenv("LITECOIN_VERSION", "0.21.4")
 LITECOIN_VERSION_TAG = os.getenv("LITECOIN_VERSION_TAG", "")
 
-BITCOIN_VERSION = os.getenv("BITCOIN_VERSION", "26.0")
-BITCOIN_VERSION_TAG = os.getenv("BITCOIN_VERSION_TAG", "")
+BITCOIN_VERSION = os.getenv('BITCOIN_VERSION', '28.0')
+BITCOIN_VERSION_TAG = os.getenv('BITCOIN_VERSION_TAG', '')
 
 MONERO_VERSION = os.getenv("MONERO_VERSION", "0.18.3.4")
 MONERO_VERSION_TAG = os.getenv("MONERO_VERSION_TAG", "")