diff --git a/ports/onnx/fix-cmake-protobuf.patch b/ports/onnx/fix-cmake-protobuf.patch
new file mode 100644
index 00000000..e60d4f74
--- /dev/null
+++ b/ports/onnx/fix-cmake-protobuf.patch
@@ -0,0 +1,34 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index a815ac1..bdc787f 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -151,10 +151,10 @@ else()
+   # to resolve PREFIX.
+   if(Protobuf_PROTOC_EXECUTABLE)
+     set(ONNX_PROTOC_EXECUTABLE ${Protobuf_PROTOC_EXECUTABLE})
+-    get_filename_component(_PROTOBUF_INSTALL_PREFIX
+-                           ${Protobuf_PROTOC_EXECUTABLE} DIRECTORY)
+-    get_filename_component(_PROTOBUF_INSTALL_PREFIX
+-                           ${_PROTOBUF_INSTALL_PREFIX}/.. REALPATH)
++    if(NOT DEFINED _PROTOBUF_INSTALL_PREFIX)
++      get_filename_component(_PROTOBUF_INSTALL_PREFIX ${Protobuf_PROTOC_EXECUTABLE} DIRECTORY)
++      get_filename_component(_PROTOBUF_INSTALL_PREFIX ${_PROTOBUF_INSTALL_PREFIX}/.. REALPATH)
++    endif()
+     find_library(Protobuf_PROTOC_LIBRARY
+                  NAMES protoc
+                  PATHS ${_PROTOBUF_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}
+@@ -173,12 +173,12 @@ else()
+     find_path(Protobuf_INCLUDE_DIR google/protobuf/service.h
+               PATHS ${_PROTOBUF_INSTALL_PREFIX}/include
+               NO_DEFAULT_PATH)
+-    find_package(Protobuf)
++    find_package(Protobuf REQUIRED)
+     if (Protobuf_FOUND)
+       set(PROTOBUF_DIR "${_PROTOBUF_INSTALL_PREFIX}")
+       set(PROTOBUF_INCLUDE_DIR "${_PROTOBUF_INSTALL_PREFIX}/include")
+       set(Build_Protobuf OFF)
+-      if ("${Protobuf_VERSION}" VERSION_GREATER_EQUAL "4.22.0")
++      if (FALSE)
+         # There are extra dependencies for protobuf.
+         find_package(absl REQUIRED)
+         find_package(utf8_range REQUIRED)
diff --git a/ports/onnx/portfile.cmake b/ports/onnx/portfile.cmake
index f96b5116..e21200a1 100644
--- a/ports/onnx/portfile.cmake
+++ b/ports/onnx/portfile.cmake
@@ -7,6 +7,7 @@ vcpkg_from_github(
     SHA512 7a9a8493b9c007429629484156487395044506f34e72253640e626351cb623b390750b36af78a290786131e3dcac35f4eb269e8693b594b7ce7cb105bcf9318d
     PATCHES
         fix-cmake.patch
+        fix-cmake-protobuf.patch
         support-test.patch
 )
 
@@ -43,9 +44,10 @@ vcpkg_cmake_configure(
     SOURCE_PATH "${SOURCE_PATH}"
     OPTIONS
         ${FEATURE_OPTIONS}
-        -DPYTHON_EXECUTABLE:FILEPATH=${PYTHON3}
-        -DProtobuf_PROTOC_EXECUTABLE=${PROTOC}
-        -DONNX_CUSTOM_PROTOC_EXECUTABLE=${PROTOC}
+        "-DPYTHON_EXECUTABLE:FILEPATH=${PYTHON3}"
+        "-D_PROTOBUF_INSTALL_PREFIX=${CURRENT_INSTALLED_DIR}"
+        "-DProtobuf_PROTOC_EXECUTABLE:FILEPATH=${PROTOC}"
+        "-DONNX_CUSTOM_PROTOC_EXECUTABLE=${PROTOC}"
         -DONNX_VERIFY_PROTO3=ON # --protoc_path for gen_proto.py
         -DONNX_ML=ON
         -DONNX_GEN_PB_TYPE_STUBS=ON
@@ -54,6 +56,7 @@ vcpkg_cmake_configure(
     MAYBE_UNUSED_VARIABLES
         ONNX_USE_MSVC_STATIC_RUNTIME
         ONNX_CUSTOM_PROTOC_EXECUTABLE
+        PROTOBUF_SEARCH_DIRS
 )
 vcpkg_cmake_install()
 vcpkg_cmake_config_fixup(CONFIG_PATH lib/cmake/ONNX PACKAGE_NAME ONNX)
diff --git a/ports/onnx/vcpkg.json b/ports/onnx/vcpkg.json
index d7ab9bf4..8027f75d 100644
--- a/ports/onnx/vcpkg.json
+++ b/ports/onnx/vcpkg.json
@@ -1,6 +1,7 @@
 {
   "name": "onnx",
   "version-semver": "1.16.2",
+  "port-version": 1,
   "description": "Open standard for machine learning interoperability",
   "homepage": "https://onnx.ai",
   "license": "Apache-2.0",
diff --git a/versions/baseline.json b/versions/baseline.json
index b089fa0a..1e53ca56 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -134,7 +134,7 @@
     },
     "onnx": {
       "baseline": "1.16.2",
-      "port-version": 0
+      "port-version": 1
     },
     "onnxruntime": {
       "baseline": "1.18.1",
diff --git a/versions/o-/onnx.json b/versions/o-/onnx.json
index 8d607592..47cd05d1 100644
--- a/versions/o-/onnx.json
+++ b/versions/o-/onnx.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "801e9d2fecd40f26b85b845c940a342510b83713",
+      "version-semver": "1.16.2",
+      "port-version": 1
+    },
     {
       "git-tree": "39cd4efb2f7e3c014a8a8657aa266bf9d10f7a89",
       "version-semver": "1.16.2",