diff --git a/.gitignore b/.gitignore
index b0fb45c..0abe089 100644
--- a/.gitignore
+++ b/.gitignore
@@ -332,3 +332,4 @@ calibre-0.7.14-nofonts.tar.xz
 /calibre-6.25.0.tar.xz
 /calibre-6.26.0.tar.xz
 /calibre-6.27.0.tar.xz
+/calibre-6.28.1.tar.xz
diff --git a/calibre.spec b/calibre.spec
index bed0780..2308a19 100644
--- a/calibre.spec
+++ b/calibre.spec
@@ -3,7 +3,7 @@
 %global _python_bytecompile_extra 0
 
 Name:           calibre
-Version:        6.27.0
+Version:        6.28.1
 Release:        %autorelease
 Summary:        E-book converter and library manager
 License:        GPLv3
diff --git a/sources b/sources
index 91254fc..119d5a5 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (calibre-6.27.0.tar.xz) = 9598644a9e6b38f93c0180f88c311d1ba1b80a233177dc08a5ec1b9b6ebaa087502f93e131ed69c017b693b58cece3185b74795f27b16428e0cda19c3a6a1411
+SHA512 (calibre-6.28.1.tar.xz) = 31fe97a47e8c96eb54286abf60e843d819c1e5bd16cbe3b92ba23114cd80b0bcee0ef54a4beb046d03a607b1a89fac42c18efb87b93065bef54609b3de6c084d