diff --git a/cdecl-13.0.tar.gz b/cdecl-13.0.tar.gz
deleted file mode 100644
index 91b00c9..0000000
--- a/cdecl-13.0.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:04d1f4ecc9868771843e0ba55c72100c805ee4de2d0618a69d9dbf853df7eefd
-size 1250042
diff --git a/cdecl-13.1.tar.gz b/cdecl-13.1.tar.gz
new file mode 100644
index 0000000..2d6ef32
--- /dev/null
+++ b/cdecl-13.1.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:29e78c788191c8fccb615c6d045ea932cf4250bcc03f36cf30374fe2d2e30846
+size 1210834
diff --git a/cdecl.changes b/cdecl.changes
index 65968fa..019d776 100644
--- a/cdecl.changes
+++ b/cdecl.changes
@@ -1,3 +1,12 @@
+-------------------------------------------------------------------
+Sun Jan  8 15:55:30 UTC 2023 - Jan Engelhardt <jengelh@inai.de>
+
+- Update to release 13.1
+  * Added support for `auto` as a deduced type in C23.
+  * C23 (anti-)trigraphs
+  * friend scoped user-defined conversion operators are now
+    parsed correctly.
+
 -------------------------------------------------------------------
 Tue Nov  1 13:11:29 UTC 2022 - Jan Engelhardt <jengelh@inai.de>
 
diff --git a/cdecl.spec b/cdecl.spec
index eb98d29..b62cff3 100644
--- a/cdecl.spec
+++ b/cdecl.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package cdecl
 #
-# Copyright (c) 2022 SUSE LLC
+# Copyright (c) 2023 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -17,7 +17,7 @@
 
 
 Name:           cdecl
-Version:        13.0
+Version:        13.1
 Release:        0
 Summary:        C/C++ function declaration translator
 License:        GPL-3.0-or-later