diff --git a/ports/wtl/atlribbon.h-wtl66.patch b/ports/wtl/atlribbon.h-wtl66.patch
new file mode 100644
index 00000000000000..d4ebac4874a7ce
--- /dev/null
+++ b/ports/wtl/atlribbon.h-wtl66.patch
@@ -0,0 +1,17 @@
+--- a/Include/atlribbon.h	2022-06-06 03:12:54.312690900 +0200
++++ b/Include/atlribbon.h	2022-06-06 03:13:24.337068900 +0200
+@@ -27,10 +27,10 @@
+ 	#error atlribbon.h requires atlapp.h to be included first
+ #endif
+ 
+-#include <atlmisc.h>    // for RecentDocumentList classes
+-#include <atlframe.h>   // for Frame and UpdateUI classes
+-#include <atlctrls.h>   // required for atlctrlw.h
+-#include <atlctrlw.h>   // for CCommandBarCtrl
++#include "atlmisc.h"    // for RecentDocumentList classes
++#include "atlframe.h"   // for Frame and UpdateUI classes
++#include "atlctrls.h"   // required for atlctrlw.h
++#include "atlctrlw.h"   // for CCommandBarCtrl
+ 
+ #ifndef __ATLSTR_H__
+   #pragma warning(push)
diff --git a/ports/wtl/portfile.cmake b/ports/wtl/portfile.cmake
index 23c13b9c46bbd7..d80bb7d7efeb0c 100644
--- a/ports/wtl/portfile.cmake
+++ b/ports/wtl/portfile.cmake
@@ -6,8 +6,11 @@ vcpkg_from_sourceforge(
     NO_REMOVE_ONE_LEVEL
     SHA512 086a6cf6a49a4318a8c519136ba6019ded7aa7f2c1d85f78c30b21183654537b3428a400a64fcdacba3a7a10a9ef05137b6f2119f59594da300d55f9ebfb1309
     PATCHES
+        # WTL 10 post-release updates; see
+        # https://sourceforge.net/projects/wtl/files/WTL%2010/WTL10%20Post-Release%20Updates.txt/download
         appwizard_setup.js-vs2022.patch
         atlmisc.h-bug329.patch
+        atlribbon.h-wtl66.patch
 )
 
 file(INSTALL "${SOURCE_PATH}/Include/" DESTINATION "${CURRENT_PACKAGES_DIR}/include" FILES_MATCHING PATTERN "*.h")
diff --git a/ports/wtl/vcpkg.json b/ports/wtl/vcpkg.json
index eda850d79c59ec..605dde9b293858 100644
--- a/ports/wtl/vcpkg.json
+++ b/ports/wtl/vcpkg.json
@@ -1,7 +1,7 @@
 {
   "name": "wtl",
   "version": "10.0.10320",
-  "port-version": 3,
+  "port-version": 4,
   "description": "Windows Template Library (WTL) is a C++ library for developing Windows applications and UI components.",
   "homepage": "https://sourceforge.net/projects/wtl/",
   "license": "MS-PL"
diff --git a/versions/baseline.json b/versions/baseline.json
index c315072c5e6ed3..2e2232d6a303c2 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -7598,7 +7598,7 @@
     },
     "wtl": {
       "baseline": "10.0.10320",
-      "port-version": 3
+      "port-version": 4
     },
     "wxchartdir": {
       "baseline": "2.0.0",
diff --git a/versions/w-/wtl.json b/versions/w-/wtl.json
index e6c04547bd7904..b0448a20bfa333 100644
--- a/versions/w-/wtl.json
+++ b/versions/w-/wtl.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "c76ddf631b62e5d0b433859f7798c7ab06050f47",
+      "version": "10.0.10320",
+      "port-version": 4
+    },
     {
       "git-tree": "77302be4bab5f3221389c7948462e15ac941002b",
       "version": "10.0.10320",