diff --git a/requirements.txt b/requirements.txt
index 277ec77..ffcdc4f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 python-bitcoinrpc>=1.0
-btchip-python
+btchip-python>=v0.1.27
 bitcoin>=1.1.42
 PyQt5>=5.9
 requests>=2.18.4
 simplejson
-ecdsa
\ No newline at end of file
+ecdsa