diff --git a/requirements.txt b/requirements.txt
index 404e326..ab71c92 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 Flask-SQLAlchemy==2.4.4
 nose==1.3.7
 email_validator==1.1.2
-iso3166==1.0.1
+iso3166==2.1.1
 pytz==2020.4
 isbnlib==3.10.4
 py-moneyed==0.8.0
diff --git a/setup.py b/setup.py
index eb36d1e..4123b96 100644
--- a/setup.py
+++ b/setup.py
@@ -23,7 +23,7 @@
     install_requires=[
         'Flask-SQLAlchemy==2.4.4',
         'email_validator==1.1.2',
-        'iso3166==1.0.1',
+        'iso3166==2.1.1',
         'pytz==2020.4',
         'isbnlib==3.10.4',
         'py-moneyed==0.8.0',