diff --git a/Argyll_V2.3.0_src.zip b/Argyll_V2.3.0_src.zip
deleted file mode 100644
index 37d4a15..0000000
--- a/Argyll_V2.3.0_src.zip
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:daa21b6de8e20b5319a10ea8f72829d32eadae14c6581b50972f2f8dd5cde924
-size 14042268
diff --git a/Argyll_V2.3.1_src.zip b/Argyll_V2.3.1_src.zip
new file mode 100644
index 0000000..1009150
--- /dev/null
+++ b/Argyll_V2.3.1_src.zip
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:bd0bcf58cec284824b79ff55baa242903ed361e12b1b37e12228679f9754961c
+size 14098636
diff --git a/argyllcms.changes b/argyllcms.changes
index 8ce3429..ba44096 100644
--- a/argyllcms.changes
+++ b/argyllcms.changes
@@ -1,3 +1,20 @@
+-------------------------------------------------------------------
+Wed Aug 17 21:24:47 UTC 2022 - Dirk Müller <dmueller@suse.com>
+
+- update to 2.3.1:
+  * Added value sanity check & warning to chartread patch by patch mode.
+  * Fixed crash on 64 bit MSWin in spectro/aglob due to changing SDK
+    declarations for _findfirst().
+  * Fixed one remaining problem with not coping with "Colour" spelling rather
+    than "Color" in cxf2ti3.
+  * Add code in cgats write to check for float format problems when faced with
+    -inf or +inf value.
+  * Fix i1Pro3 highres in ccxxmake, dispcal & dispread.
+  * Changed OS X usb reset to re-enumerate instead, as reset does nothing on OS
+    X >= 10.8.
+  * Added spectro/instlib.api.txt file to public distribution.
+  * Fixed possible crashes in xicc/ccss.c and spectro/oeminst.c  
+
 -------------------------------------------------------------------
 Wed Jan 26 13:23:17 UTC 2022 - Paolo Stivanin <info@paolostivanin.com>
 
diff --git a/argyllcms.spec b/argyllcms.spec
index 2dcf0e3..1fd8d33 100644
--- a/argyllcms.spec
+++ b/argyllcms.spec
@@ -19,13 +19,13 @@
 %define tarname Argyll
 
 Name:           argyllcms
-Version:        2.3.0
+Version:        2.3.1
 Release:        0
 Summary:        ICC compatible color management system
 License:        AGPL-3.0-only AND GPL-2.0-or-later AND MIT
 Group:          System/X11/Utilities
-URL:            http://www.argyllcms.com/
-Source0:        http://www.argyllcms.com/%{tarname}_V%{version}_src.zip
+URL:            https://www.argyllcms.com/
+Source0:        https://www.argyllcms.com/%{tarname}_V%{version}_src.zip
 Source1:        19-color.fdi
 Source2:        color-device-file.policy
 Source3:        ajam-2.5.2-1.3.3.tgz