diff --git a/ports/imath/portfile.cmake b/ports/imath/portfile.cmake
index 367b259a26..fdc9f0c57d 100644
--- a/ports/imath/portfile.cmake
+++ b/ports/imath/portfile.cmake
@@ -2,7 +2,7 @@ vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO AcademySoftwareFoundation/Imath
     REF "v${VERSION}"
-    SHA512 0bc86bea3a2aca89d02b501b4fba3c13ca861e914cec558e820fe9e4c43ab14cac34e31ff278b8c35b5fe76f7bea32f2c8105c0d33eb92224eb23d42d7a402e9
+    SHA512 32628dfcacb610310b81ffe017a66215cf5fb84c2e0a6ac8c94a68c048be3d2b97eb57965dd253770184d5824cce1e5440b8eefb2834666b273b3193ff108343
     HEAD_REF master
 )
 
diff --git a/ports/imath/vcpkg.json b/ports/imath/vcpkg.json
index 505bc37bb7..e599048b21 100644
--- a/ports/imath/vcpkg.json
+++ b/ports/imath/vcpkg.json
@@ -1,6 +1,6 @@
 {
   "name": "imath",
-  "version": "3.1.11",
+  "version": "3.1.12",
   "description": "Imath is a C++ and Python library of 2D and 3D vector, matrix, and math operations for computer graphics.",
   "homepage": "https://github.com/AcademySoftwareFoundation/Imath",
   "license": "BSD-3-Clause",
diff --git a/versions/baseline.json b/versions/baseline.json
index cc1b15b1a1..a7276c7b92 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -3661,7 +3661,7 @@
       "port-version": 0
     },
     "imath": {
-      "baseline": "3.1.11",
+      "baseline": "3.1.12",
       "port-version": 0
     },
     "imcce-openfa": {
diff --git a/versions/i-/imath.json b/versions/i-/imath.json
index 0620b3c6ed..0172e2aeb0 100644
--- a/versions/i-/imath.json
+++ b/versions/i-/imath.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "7fcd959578cbd9463b50f72b5d0f553d359ffb47",
+      "version": "3.1.12",
+      "port-version": 0
+    },
     {
       "git-tree": "656b29a2ec31b311e86110926a1f33348a38d15d",
       "version": "3.1.11",