diff --git a/ports/opencv3/portfile.cmake b/ports/opencv3/portfile.cmake
index cfbadca4f0..8904d19935 100644
--- a/ports/opencv3/portfile.cmake
+++ b/ports/opencv3/portfile.cmake
@@ -2,6 +2,7 @@ file(READ "${CMAKE_CURRENT_LIST_DIR}/vcpkg.json" _contents)
 string(JSON OPENCV_VERSION GET "${_contents}" version)
 
 set(USE_QT_VERSION "5")
+set(ENABLE_CXX11 ON)
 
 vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
@@ -282,6 +283,7 @@ if("ffmpeg" IN_LIST FEATURES)
 endif()
 
 if("halide" IN_LIST FEATURES)
+  set(ENABLE_CXX11 OFF)
   list(APPEND ADDITIONAL_BUILD_FLAGS
     # Halide 13 requires C++17
     "-DCMAKE_CXX_STANDARD=17"
@@ -369,7 +371,7 @@ vcpkg_cmake_configure(
         -DCMAKE_DISABLE_FIND_PACKAGE_Git=ON
         -DCMAKE_DISABLE_FIND_PACKAGE_JNI=ON
         # ENABLE
-        -DENABLE_CXX11=ON
+        -DENABLE_CXX11=${ENABLE_CXX11}
         ###### OPENCV vars
         "-DOPENCV_DOWNLOAD_PATH=${DOWNLOADS}/opencv-cache"
         ${BUILD_WITH_CONTRIB_FLAG}
diff --git a/ports/opencv3/vcpkg.json b/ports/opencv3/vcpkg.json
index d5776fddab..3ad32ac8b3 100644
--- a/ports/opencv3/vcpkg.json
+++ b/ports/opencv3/vcpkg.json
@@ -1,7 +1,7 @@
 {
   "name": "opencv3",
   "version": "3.4.18",
-  "port-version": 9,
+  "port-version": 10,
   "description": "Open Source Computer Vision Library",
   "homepage": "https://github.com/opencv/opencv",
   "license": "BSD-3-Clause",
diff --git a/versions/baseline.json b/versions/baseline.json
index bcf85f5797..038d537573 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -5806,7 +5806,7 @@
     },
     "opencv3": {
       "baseline": "3.4.18",
-      "port-version": 9
+      "port-version": 10
     },
     "opencv4": {
       "baseline": "4.7.0",
diff --git a/versions/o-/opencv3.json b/versions/o-/opencv3.json
index fa51d779b7..207e8e4007 100644
--- a/versions/o-/opencv3.json
+++ b/versions/o-/opencv3.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "b66d5bf3d61ae3bd5e71952b7642658d8562ae5d",
+      "version": "3.4.18",
+      "port-version": 10
+    },
     {
       "git-tree": "402e9aac0f32db08e2d69f70ba6384f8c7bf4733",
       "version": "3.4.18",