diff --git a/requirements.txt b/requirements.txt
index 64af83c..f5ce9ae 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 toolz==0.11.1;implementation_name=='pypy'
 cytoolz==0.11.0;implementation_name=='cpython'
 cpc-abi>=1.3.3
-eth-account==0.3.0
+eth-account==0.5.9
 eth-utils==1.6.0
 hexbytes==0.2.1
 lru-dict==1.1.7
diff --git a/setup.py b/setup.py
index 90b60f0..681e3a3 100644
--- a/setup.py
+++ b/setup.py
@@ -73,7 +73,7 @@
         "cytoolz>=0.9.0,<1.0.0;implementation_name=='cpython'",
         # "eth-abi==1.3.0",
         "cpc-abi>=1.3.4",
-        "eth-account>=0.2.1,<0.4.0",
+        "eth-account>=0.2.1,<0.6.0",
         "eth-utils>=1.2.0,<2.0.0",
         "hexbytes>=0.1.0,<1.0.0",
         "lru-dict>=1.1.6,<2.0.0",