diff --git a/requirements.txt b/requirements.txt
index 98666a360..88b27d6f4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -183,7 +183,7 @@ rsa==4.7.2
     # via awscli
 rtreelib==0.2.0
     # via -r requirements.in
-s3transfer==0.3.7
+s3transfer==0.4.2
     # via
     #   awscli
     #   boto3