diff --git a/mupdf-1.20.3-source.tar.zst b/mupdf-1.20.3-source.tar.zst
deleted file mode 100644
index 3eb871c..0000000
--- a/mupdf-1.20.3-source.tar.zst
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:108c4ad87d5cdd3ad47a3a872acdf101693283442469629dabb7631f1f3a0b3f
-size 69709366
diff --git a/mupdf-1.21.1-source.tar.gz b/mupdf-1.21.1-source.tar.gz
new file mode 100644
index 0000000..f528c8d
--- /dev/null
+++ b/mupdf-1.21.1-source.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b24ddbe12506cc82de08d5cd494614ba08346f8175db1d98bcf938ff94925a54
+size 57243762
diff --git a/mupdf.changes b/mupdf.changes
index 068fe68..defc3db 100644
--- a/mupdf.changes
+++ b/mupdf.changes
@@ -1,3 +1,22 @@
+-------------------------------------------------------------------
+Sat Dec 17 17:35:13 UTC 2022 - Dirk Müller <dmueller@suse.com>
+
+- update to 1.21.1:
+  * Garbage collection problem causing file bloat on clean
+  * Don't assume sorted objects in pdf_objcmp
+  * Don't layout empty documents
+  * Type 3 font char bboxes
+  * Added MOBI input format support
+  * Added Story API for creating PDF documents from formatted text
+  * Added API to create, edit, and delete links
+  * Support custom images for Stamp annotations
+  * Support interior color on Polygon annotations
+  * Support line endings on PolyLine annotations
+  * Improved SVG output
+  * C++/Python/C# binding:
+    * Changes to naming of wrapper functions and classes
+    * Added limited support for callbacks into Python, using SWIG Directors
+
 -------------------------------------------------------------------
 Wed Aug 17 19:15:55 UTC 2022 - Dirk Müller <dmueller@suse.com>
 
diff --git a/mupdf.spec b/mupdf.spec
index 5929fe3..210dfa6 100644
--- a/mupdf.spec
+++ b/mupdf.spec
@@ -18,13 +18,13 @@
 
 
 Name:           mupdf
-Version:        1.20.3
+Version:        1.21.1
 Release:        0
 Summary:        PDF and XPS Viewer and Parser and Rendering Library
 License:        AGPL-3.0-or-later
 Group:          Productivity/Office/Other
 URL:            https://mupdf.com/
-Source0:        https://mupdf.com/downloads/archive/%{name}-%{version}-source.tar.zst
+Source0:        https://mupdf.com/downloads/archive/%{name}-%{version}-source.tar.gz
 Source1:        %{name}.desktop
 Source2:        %{name}-gl.desktop
 Patch0:         mupdf-no-strip.patch