diff --git a/ports/msgpack/portfile.cmake b/ports/msgpack/portfile.cmake
index 77fd655059..004eb24433 100644
--- a/ports/msgpack/portfile.cmake
+++ b/ports/msgpack/portfile.cmake
@@ -6,7 +6,7 @@ vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO msgpack/msgpack-c
     REF cpp-${VERSION}
-    SHA512 3b64605974b64384619c07a4895f8ceb56243046b5c941345594d70baf3ad7749573b83c5b20e83505204fc1905ddb0a7dde1c5109ef8a34b5c848d1bb073946
+    SHA512 23e1fa14c9d1bcf70b74ebb6d2379691a3224022a5b5a186c48e0c3c0af54eb6c755bcbaf900024ecaafb031a450c34e207cd4d66bdfb701ffef44fc06d87915
     HEAD_REF cpp_master
 )
 
diff --git a/ports/msgpack/vcpkg.json b/ports/msgpack/vcpkg.json
index 4796d21101..1bbd792408 100644
--- a/ports/msgpack/vcpkg.json
+++ b/ports/msgpack/vcpkg.json
@@ -1,6 +1,6 @@
 {
   "name": "msgpack",
-  "version": "7.0.0",
+  "version": "8.0.0",
   "description": "MessagePack is an efficient binary serialization format, which lets you exchange data among multiple languages like JSON, except that it's faster and smaller.",
   "homepage": "https://github.com/msgpack/msgpack-c",
   "license": "BSL-1.0",
diff --git a/versions/baseline.json b/versions/baseline.json
index 520c15af48..fa2bd46633 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -6749,7 +6749,7 @@
       "port-version": 0
     },
     "msgpack": {
-      "baseline": "7.0.0",
+      "baseline": "8.0.0",
       "port-version": 0
     },
     "msgpack-c": {
diff --git a/versions/m-/msgpack.json b/versions/m-/msgpack.json
index 01372150d4..fee4f24ea9 100644
--- a/versions/m-/msgpack.json
+++ b/versions/m-/msgpack.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "bb4893fcebb0e60df065df6f09e803e3900d0b41",
+      "version": "8.0.0",
+      "port-version": 0
+    },
     {
       "git-tree": "cdac05cd3f088144383ba271b77f2cc6dcf12ee6",
       "version": "7.0.0",