diff --git a/requirements.txt b/requirements.txt
index 404e326..b6582db 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,6 +3,6 @@ nose==1.3.7
 email_validator==1.1.2
 iso3166==1.0.1
 pytz==2020.4
-isbnlib==3.10.4
+isbnlib==3.10.13
 py-moneyed==0.8.0
 schwifty==2020.11.0
\ No newline at end of file
diff --git a/setup.py b/setup.py
index eb36d1e..87e320c 100644
--- a/setup.py
+++ b/setup.py
@@ -25,7 +25,7 @@
         'email_validator==1.1.2',
         'iso3166==1.0.1',
         'pytz==2020.4',
-        'isbnlib==3.10.4',
+        'isbnlib==3.10.13',
         'py-moneyed==0.8.0',
         'schwifty==2020.11.0'
     ],