diff --git a/setup.py b/setup.py
index a38eb94..ea130c2 100644
--- a/setup.py
+++ b/setup.py
@@ -17,7 +17,7 @@
       install_requires=[
           'requests>=2.20.0',
           'pycryptodome>=3.9.8,<4.0',
-          'ecdsa==0.15',
+          'ecdsa==0.19.2',
           'six>=1.8.0',
           'base58==1.0.3'
       ],