diff --git a/.gitignore b/.gitignore
index 13ec70c..e34cf25 100644
--- a/.gitignore
+++ b/.gitignore
@@ -30,3 +30,4 @@
 /mupdf-1.20.3-source.tar.gz
 /mupdf-1.21.0-rc1-source.tar.gz
 /mupdf-1.21.0-source.tar.gz
+/mupdf-1.21.1-source.tar.gz
diff --git a/mupdf.spec b/mupdf.spec
index 22f39af..73325c9 100644
--- a/mupdf.spec
+++ b/mupdf.spec
@@ -4,8 +4,9 @@
 %global jbig2dec_version 0.19
 
 Name:           mupdf
-Version:        1.21.0
-%global upversion 1.21.0
+Version:        1.21.1
+# upstream prerelease versions tags need to be translated to Fedorian
+%global upversion %{version}
 Release:        %autorelease
 Summary:        A lightweight PDF viewer and toolkit
 License:        AGPLv3+
diff --git a/sources b/sources
index 1aca1c5..930c5a4 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (mupdf-1.21.0-source.tar.gz) = a711489e236437e4e7c21373d8624118a5308941148be31cd57a0bbed708b44b1d4030aed71ccb82143159fc3a23e5524738e7fc6177058e6bdaf94a36beaf64
+SHA512 (mupdf-1.21.1-source.tar.gz) = 11eeea409e0b44d3f754a44b00b15522c2ae2d94171b8c7067efa7acbb1d597eefe1e27607fab90a56bf6c73579bbfb77b7599080fc2504a5881aaf7cc1957c7