diff --git a/tox.ini b/tox.ini
index 6c428f0..ae8ac31 100644
--- a/tox.ini
+++ b/tox.ini
@@ -23,7 +23,7 @@ deps =
     django-rest-polymorphic~=0.1
     phonenumbers~=8.9.10
     PyPDF3~=1.0.2
-    python-magic==0.4.21
+    python-magic==0.4.22
     whoosh~=2.7
 commands =
     coverage run --source=apps,tfjm ./manage.py test apps/ tfjm/