diff --git a/eth_sign/requirements.txt b/eth_sign/requirements.txt
index a0a8749..f0ee5fc 100644
--- a/eth_sign/requirements.txt
+++ b/eth_sign/requirements.txt
@@ -1,6 +1,6 @@
 dynaconf == 2.0.3
 eth_utils == 1.7.0
-eth_account == 0.4.0
+eth_account == 0.5.9
 eth_abi == 2.0.0
 requests == 2.22.0
 tornado == 6.0.3
\ No newline at end of file
diff --git a/eth_sign/setup.py b/eth_sign/setup.py
index 9c0e43a..bd514b2 100644
--- a/eth_sign/setup.py
+++ b/eth_sign/setup.py
@@ -14,7 +14,7 @@
     install_requires=[
             'eth-utils == 1.7.0',
             'requests == 2.22.0',
-            'eth-account == 0.4.0',
+            'eth-account == 0.5.9',
             'click == 7.0',
             'tornado == 6.0.3',
             'eth_abi == 2.0.0'