diff --git a/pkgs/by-name/pa/panotools/cmake4.patch b/pkgs/by-name/pa/panotools/cmake4.patch
deleted file mode 100644
index 13d12cc103f8..000000000000
--- a/pkgs/by-name/pa/panotools/cmake4.patch
+++ /dev/null
@@ -1,32 +0,0 @@
-Subject: Vendor upstream patches (mercurial/sourceforge)
-Author: Andreas Metzler
-
-From:
-- https://sourceforge.net/p/panotools/libpano13/ci/698e20b4d296c1dbde9d010c3fb8d54050e56ddb/
-- https://sourceforge.net/p/panotools/libpano13/ci/6b0f2a5ef7a0490866fb224158d1dfbb8bf5896f/
-
---- a/CMakeLists.txt
-+++ b/CMakeLists.txt
-@@ -28,8 +28,7 @@
- ## may need to edit the wxWidgets version number below.
- ##
- 
--# require at least cmake 3.0
--cmake_minimum_required(VERSION 3.0)
-+cmake_minimum_required(VERSION 3.12...4.0)
- if(POLICY CMP0074)
-   cmake_policy(SET CMP0074 NEW)
- endif()
-@@ -382,12 +382,12 @@
- endif()
- 
- # create TAGS file
--ADD_CUSTOM_COMMAND( OUTPUT ctags POST_BUILD
--                   COMMAND ctags-exuberant -e *.c *.h tools/*.c
-+ADD_CUSTOM_COMMAND( OUTPUT ${PROJECT_SOURCE_DIR}/TAGS
-+                   COMMAND ctags -e *.c *.h tools/*.c
-                    WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}/
-                    COMMENT "Build TAGS file"
-                  )
--ADD_CUSTOM_TARGET( TAGS DEPENDS ctags)
-+ADD_CUSTOM_TARGET( TAGS DEPENDS ${PROJECT_SOURCE_DIR}/TAGS)
diff --git a/pkgs/by-name/pa/panotools/package.nix b/pkgs/by-name/pa/panotools/package.nix
index fe5e41c95c12..a5db44159eb3 100644
--- a/pkgs/by-name/pa/panotools/package.nix
+++ b/pkgs/by-name/pa/panotools/package.nix
@@ -11,15 +11,13 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "libpano13";
-  version = "2.9.22";
+  version = "2.9.23";
 
   src = fetchurl {
     url = "mirror://sourceforge/panotools/libpano13-${finalAttrs.version}.tar.gz";
-    hash = "sha256-r/xoMM2+ccKNJzHcv43qKs2m2f/UYJxtvzugxoRAqOM=";
+    hash = "sha256-58B203oUw5Q0liEV5H3b4YRSyj3lzkDiqu+nz1gV6ig=";
   };
 
-  patches = [ ./cmake4.patch ];
-
   strictDeps = true;
 
   nativeBuildInputs = [