diff --git a/.ci_support/linux_64_.yaml b/.ci_support/linux_64_.yaml
index 81a0e1b..a0a911a 100644
--- a/.ci_support/linux_64_.yaml
+++ b/.ci_support/linux_64_.yaml
@@ -55,7 +55,7 @@ openexr:
 openjpeg:
 - '2'
 openjph:
-- '0.27'
+- '0.28'
 pin_run_as_build:
   python:
     min_pin: x.x
diff --git a/.ci_support/linux_aarch64_.yaml b/.ci_support/linux_aarch64_.yaml
index 78593a0..443752e 100644
--- a/.ci_support/linux_aarch64_.yaml
+++ b/.ci_support/linux_aarch64_.yaml
@@ -55,7 +55,7 @@ openexr:
 openjpeg:
 - '2'
 openjph:
-- '0.27'
+- '0.28'
 pin_run_as_build:
   python:
     min_pin: x.x
diff --git a/.ci_support/linux_ppc64le_.yaml b/.ci_support/linux_ppc64le_.yaml
index 8fdf072..7c0549b 100644
--- a/.ci_support/linux_ppc64le_.yaml
+++ b/.ci_support/linux_ppc64le_.yaml
@@ -55,7 +55,7 @@ openexr:
 openjpeg:
 - '2'
 openjph:
-- '0.27'
+- '0.28'
 pin_run_as_build:
   python:
     min_pin: x.x
diff --git a/.ci_support/migrations/libheif123.yaml b/.ci_support/migrations/libheif123.yaml
deleted file mode 100644
index 044dc71..0000000
--- a/.ci_support/migrations/libheif123.yaml
+++ /dev/null
@@ -1,8 +0,0 @@
-__migrator:
-  build_number: 1
-  commit_message: Rebuild for libheif 1.23
-  kind: version
-  migration_number: 1
-libheif:
-- '1.23'
-migrator_ts: 1780773229.1024594
diff --git a/.ci_support/migrations/openjph028.yaml b/.ci_support/migrations/openjph028.yaml
new file mode 100644
index 0000000..eb05f4c
--- /dev/null
+++ b/.ci_support/migrations/openjph028.yaml
@@ -0,0 +1,8 @@
+__migrator:
+  build_number: 1
+  commit_message: Rebuild for openjph 0.28
+  kind: version
+  migration_number: 1
+migrator_ts: 1781175110.2356582
+openjph:
+- '0.28'
diff --git a/.ci_support/osx_64_.yaml b/.ci_support/osx_64_.yaml
index e606396..4c6f1f2 100644
--- a/.ci_support/osx_64_.yaml
+++ b/.ci_support/osx_64_.yaml
@@ -57,7 +57,7 @@ openexr:
 openjpeg:
 - '2'
 openjph:
-- '0.27'
+- '0.28'
 pin_run_as_build:
   python:
     min_pin: x.x
diff --git a/.ci_support/osx_arm64_.yaml b/.ci_support/osx_arm64_.yaml
index 858e19c..51b352d 100644
--- a/.ci_support/osx_arm64_.yaml
+++ b/.ci_support/osx_arm64_.yaml
@@ -57,7 +57,7 @@ openexr:
 openjpeg:
 - '2'
 openjph:
-- '0.27'
+- '0.28'
 pin_run_as_build:
   python:
     min_pin: x.x
diff --git a/.ci_support/win_64_.yaml b/.ci_support/win_64_.yaml
index bff6fb3..6f2145d 100644
--- a/.ci_support/win_64_.yaml
+++ b/.ci_support/win_64_.yaml
@@ -47,7 +47,7 @@ openexr:
 openjpeg:
 - '2'
 openjph:
-- '0.27'
+- '0.28'
 pin_run_as_build:
   python:
     min_pin: x.x
diff --git a/recipe/recipe.yaml b/recipe/recipe.yaml
index aa3a781..0870809 100644
--- a/recipe/recipe.yaml
+++ b/recipe/recipe.yaml
@@ -43,7 +43,7 @@ context:
   version: "3.1.14.0"
   # https://github.com/AcademySoftwareFoundation/OpenColorIO/releases
   ocio_version: "2.5.2"
-  build_number: 3
+  build_number: 4
 
 recipe:
   name: openimageio-split