diff --git a/ports/pybind11/portfile.cmake b/ports/pybind11/portfile.cmake
index 6277348ad84049..915e72dafc2ffc 100644
--- a/ports/pybind11/portfile.cmake
+++ b/ports/pybind11/portfile.cmake
@@ -1,8 +1,8 @@
 vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO pybind/pybind11
-    REF v2.8.1
-    SHA512 6738b4551a1ca2fdf6676be78216b9056cecf8b4d125f0d1aaae9929614bcbf4a9b233fc3c52b8f9dfd19a9ca1496515e6748c1afd8968b9c52c9a1e8b28da10
+    REF v2.9.0
+    SHA512 87184c9e09e1340f2d34786a66560fe77684a3629b517f78321073a1f0dfdb766365d3698dcf6f08e5141b1f4da50ec917e61b36538e5a1ec9fd1b68f29cd396
     HEAD_REF master
 )
 
diff --git a/ports/pybind11/vcpkg.json b/ports/pybind11/vcpkg.json
index e8dbe72752eac3..1b418679395771 100644
--- a/ports/pybind11/vcpkg.json
+++ b/ports/pybind11/vcpkg.json
@@ -1,7 +1,6 @@
 {
   "name": "pybind11",
-  "version-semver": "2.8.1",
-  "port-version": 1,
+  "version-semver": "2.9.0",
   "description": "pybind11 is a lightweight header-only library that exposes C++ types in Python and vice versa, mainly to create Python bindings of existing C++ code",
   "homepage": "https://github.com/pybind/pybind11",
   "supports": "!(arm & windows)",
diff --git a/versions/baseline.json b/versions/baseline.json
index a5fcf88f996554..c9ae146e5125d2 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -5493,8 +5493,8 @@
       "port-version": 1
     },
     "pybind11": {
-      "baseline": "2.8.1",
-      "port-version": 1
+      "baseline": "2.9.0",
+      "port-version": 0
     },
     "pystring": {
       "baseline": "1.1.3",
diff --git a/versions/p-/pybind11.json b/versions/p-/pybind11.json
index 83ddc0af648d03..97753cf6d2e240 100644
--- a/versions/p-/pybind11.json
+++ b/versions/p-/pybind11.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "66591866c63bfff5fea690e23a05aa14cad10967",
+      "version-semver": "2.9.0",
+      "port-version": 0
+    },
     {
       "git-tree": "16618fe9543461ee68ba815f511afacbbcfd8330",
       "version-semver": "2.8.1",