diff --git a/requirements.txt b/requirements.txt
index 65b335e..e645e88 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,6 +8,7 @@ google-auth-oauthlib
 httplib2
 oauthlib
 python-magic
+python-magic-bin
 requests
 requests-oauthlib
 requests-toolbelt