diff --git a/isort-4.3.20.tar.gz b/isort-4.3.20.tar.gz
deleted file mode 100644
index adbdf60..0000000
--- a/isort-4.3.20.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:c40744b6bc5162bbb39c1257fe298b7a393861d50978b565f3ccd9cb9de0182a
-size 69364
diff --git a/isort-4.3.21.tar.gz b/isort-4.3.21.tar.gz
new file mode 100644
index 0000000..4fd0f25
--- /dev/null
+++ b/isort-4.3.21.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:54da7e92468955c4fceacd0c86bd0ec997b0e1ee80d97f67c35a78b719dccab1
+size 69546
diff --git a/python-isort.changes b/python-isort.changes
index 5426e21..3e8b681 100644
--- a/python-isort.changes
+++ b/python-isort.changes
@@ -1,9 +1,17 @@
+-------------------------------------------------------------------
+Sun Jun 30 13:17:40 UTC 2019 - Sebastian Wagner <sebix+novell.com@sebix.at>
+
+- update to version 4.3.21:
+ - Fixed issue #957 - Long aliases and use_parentheses generates invalid syntax
+
 -------------------------------------------------------------------
 Fri May 24 12:12:26 UTC 2019 - pgajdos@suse.com
 
-- version update to 4.3.20
+- version update to 4.3.20:
   - Fixed issue #948 - Pipe redirection broken on Python2.7
   - Fixed issue #942 - correctly handle pyi (Python Template Files) to match `black` output
+- update to version 4.3.19:
+ - Fixed issue #942 - correctly handle pyi (Python Template Files) to match `black` output
 
 -------------------------------------------------------------------
 Tue May  7 08:06:20 UTC 2019 - Tomáš Chvátal <tchvatal@suse.com>
diff --git a/python-isort.spec b/python-isort.spec
index d0333f2..eda329b 100644
--- a/python-isort.spec
+++ b/python-isort.spec
@@ -26,7 +26,7 @@
 %bcond_with test
 %endif
 Name:           python-isort%{psuffix}
-Version:        4.3.20
+Version:        4.3.21
 Release:        0
 Summary:        A Python utility / library to sort Python imports
 License:        MIT