diff --git a/.gitignore b/.gitignore
index 54682f6..5c27d35 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,3 +16,4 @@
 /s3transfer-0.3.5.tar.gz
 /s3transfer-0.3.6.tar.gz
 /s3transfer-0.3.7.tar.gz
+/s3transfer-0.4.0.tar.gz
diff --git a/python-s3transfer.spec b/python-s3transfer.spec
index 16ac795..40c6c41 100644
--- a/python-s3transfer.spec
+++ b/python-s3transfer.spec
@@ -3,7 +3,7 @@
 S3transfer is a Python library for managing Amazon S3 transfers.
 
 Name:           python-%{srcname}
-Version:        0.3.7
+Version:        0.4.0
 Release:        1%{?dist}
 Summary:        Amazon S3 Transfer Manager
 
@@ -41,6 +41,9 @@ rm -vrf *.egg-info
 %{python3_sitelib}/%{srcname}-*.egg-info/
 
 %changelog
+* Mon Apr 19 2021 Gwyn Ciesla <gwync@protonmail.com> - 0.4.0-1
+- 0.4.0
+
 * Wed Apr 14 2021 Gwyn Ciesla <gwync@protonmail.com> - 0.3.7-1
 - 0.3.7
 
diff --git a/sources b/sources
index eb0e1e5..656e7fd 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (s3transfer-0.3.7.tar.gz) = b341103e87c092b1c016dc8bfc45b4564c54f5c5a1f3549cf421802620b755d0779b80718a5b4357d3b206b71773fb2b28571730b673fd9af27fc8a3a40ce1b4
+SHA512 (s3transfer-0.4.0.tar.gz) = 4801932d61cc3adfdd105833c3bc50f4135072b10efe04b45bff4b50f18a0783be196338be081e932c73a3eec5448c012bb3988575f8b2b61e9aec9c555ad826