diff --git a/requirements.txt b/requirements.txt
index 7169ecf..37b5273 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,7 +20,7 @@ pycountry-convert==0.7.2
 pycountry==19.8.18
 python-dateutil==2.8.1
 requests==2.22.0
-s3transfer==0.3.2
+s3transfer==0.3.3
 setuptools==44.0.0
 six==1.14.0
 transip==2.0.0