diff --git a/ports/winreg/portfile.cmake b/ports/winreg/portfile.cmake
index 38933f3250..e445247601 100644
--- a/ports/winreg/portfile.cmake
+++ b/ports/winreg/portfile.cmake
@@ -4,7 +4,7 @@ vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO GiovanniDicanio/WinReg
     REF "v${VERSION}"
-    SHA512 174d5ff3c08825990663159e91b9150f5a792591a4ee9e7f08facde124e212456df8b52c3fb50239363a2a2b43986678fde3880ca81e19c4c51e0f2ebddfef8c
+    SHA512 2c1f43a57d42628fbf3e5b5e268fd9248cbeaef47500e1a580a44634b9fbc38622d0adb89f454abba602c50d334323512458c6d860b9818c39a65a3fb7d1e48b
     HEAD_REF master
 )
 
diff --git a/ports/winreg/vcpkg.json b/ports/winreg/vcpkg.json
index 0bf00c0cb5..a988c6cc1d 100644
--- a/ports/winreg/vcpkg.json
+++ b/ports/winreg/vcpkg.json
@@ -1,6 +1,6 @@
 {
   "name": "winreg",
-  "version": "6.3.2",
+  "version": "6.4.0",
   "description": "High-level C++ wrapper around the Windows Registry C API.",
   "homepage": "https://github.com/GiovanniDicanio/WinReg",
   "license": "MIT",
diff --git a/versions/baseline.json b/versions/baseline.json
index 396a326cc2..47b54baa1c 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -10549,7 +10549,7 @@
       "port-version": 0
     },
     "winreg": {
-      "baseline": "6.3.2",
+      "baseline": "6.4.0",
       "port-version": 0
     },
     "winsock2": {
diff --git a/versions/w-/winreg.json b/versions/w-/winreg.json
index b1b0cf9901..e7db0c07ec 100644
--- a/versions/w-/winreg.json
+++ b/versions/w-/winreg.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "d4bb3d1df0686ff973f40ee45ad70ba7ab036014",
+      "version": "6.4.0",
+      "port-version": 0
+    },
     {
       "git-tree": "74833e1a8a84195835e2baa33f409c60a81ddf28",
       "version": "6.3.2",