diff --git a/requirements.txt b/requirements.txt
index 289c50a..0415186 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 openpyxl
 leveldb
-fastecdsa==1.7.3
+fastecdsa==2.1.2
 jsonpickle==1.1
 Flask==1.0.2
 requests==2.20.0