diff --git a/ports/orange-math/portfile.cmake b/ports/orange-math/portfile.cmake
index 7f261ccb3e..55794257f2 100644
--- a/ports/orange-math/portfile.cmake
+++ b/ports/orange-math/portfile.cmake
@@ -6,7 +6,7 @@ vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO orange-cpp/omath
     REF "v${VERSION}"
-    SHA512 0d3cb634e331a8c03c7bc4b79c874693997410ccafca75465296d1403c4975e8e3f4991fbb6567f2f01ad7df7b59186b0d84cb86eca56538c0bbedaf6b7e1610
+    SHA512 6cdb92137df74d2afea722ffae57bde25a9f80687ad12e9e8a35ad5575e67acba2e63148534d3f9b182007b43e3547254d1181308de30f20b710ec5dda792c77
     HEAD_REF master
 )
 
diff --git a/ports/orange-math/vcpkg.json b/ports/orange-math/vcpkg.json
index fb7796a205..da31c022f7 100644
--- a/ports/orange-math/vcpkg.json
+++ b/ports/orange-math/vcpkg.json
@@ -1,6 +1,6 @@
 {
   "name": "orange-math",
-  "version": "5.4.0",
+  "version": "5.5.1",
   "description": "General purpose math library",
   "homepage": "https://github.com/orange-cpp/omath",
   "documentation": "https://libomath.org",
diff --git a/versions/baseline.json b/versions/baseline.json
index b214182032..33e53c4368 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -7569,7 +7569,7 @@
       "port-version": 1
     },
     "orange-math": {
-      "baseline": "5.4.0",
+      "baseline": "5.5.1",
       "port-version": 0
     },
     "orange-vmprotect-sdk": {
diff --git a/versions/o-/orange-math.json b/versions/o-/orange-math.json
index a5b4f8a408..4c840b43fe 100644
--- a/versions/o-/orange-math.json
+++ b/versions/o-/orange-math.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "0c25b41db3899d52c47eb619ae469205cb9c9f65",
+      "version": "5.5.1",
+      "port-version": 0
+    },
     {
       "git-tree": "87a8bd56d809fec3fccbd381394fb64ad6532811",
       "version": "5.4.0",