diff --git a/ports/simdutf/portfile.cmake b/ports/simdutf/portfile.cmake
index 6b02c9390a..ba4ae54b97 100644
--- a/ports/simdutf/portfile.cmake
+++ b/ports/simdutf/portfile.cmake
@@ -2,7 +2,7 @@ vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO simdutf/simdutf
     REF "v${VERSION}"
-    SHA512 8889aad6655e3c2119ed037aafbce1bfcd19304486c674e44b0dcdcae8674b1fe7ae0093536c33a1a0e8fecf6fc436863160c12797542655785fa11ca33b41e9
+    SHA512 6a248214208602739975b7b6e50ffff3acc11ba37b9f0493a6b498a64520bd4f6cb4cfa51076a9d5b07cb749d073ba0d16df246308b196e1fea672f30c40a3e5
     HEAD_REF master
 )
 
diff --git a/ports/simdutf/vcpkg.json b/ports/simdutf/vcpkg.json
index d8b8518f7a..33b58b254a 100644
--- a/ports/simdutf/vcpkg.json
+++ b/ports/simdutf/vcpkg.json
@@ -1,6 +1,6 @@
 {
   "name": "simdutf",
-  "version-semver": "5.4.15",
+  "version-semver": "5.5.0",
   "description": "Unicode validation and transcoding at billions of characters per second",
   "homepage": "https://github.com/simdutf/simdutf",
   "dependencies": [
diff --git a/versions/baseline.json b/versions/baseline.json
index 79791026aa..015701ae98 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -8305,7 +8305,7 @@
       "port-version": 0
     },
     "simdutf": {
-      "baseline": "5.4.15",
+      "baseline": "5.5.0",
       "port-version": 0
     },
     "simonbrunel-qtpromise": {
diff --git a/versions/s-/simdutf.json b/versions/s-/simdutf.json
index 5eafb93702..b7006750c0 100644
--- a/versions/s-/simdutf.json
+++ b/versions/s-/simdutf.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "d46df0fe18299316eccfdef76fea84b91c235609",
+      "version-semver": "5.5.0",
+      "port-version": 0
+    },
     {
       "git-tree": "89651387d0dc303ea5a6bd031834ed0a483cba0c",
       "version-semver": "5.4.15",