diff --git a/ports/hdf5/add-_Float16-type-on-aarch64.patch b/ports/hdf5/add-_Float16-type-on-aarch64.patch
new file mode 100644
index 0000000000..3e324dc7e0
--- /dev/null
+++ b/ports/hdf5/add-_Float16-type-on-aarch64.patch
@@ -0,0 +1,16 @@
+diff --git a/src/H5private.h b/src/H5private.h
+index 904aa9f..e745c03 100644
+--- a/src/H5private.h
++++ b/src/H5private.h
+@@ -602,7 +602,11 @@
+  */
+ #ifdef H5_HAVE__FLOAT16
+ #if defined(__GNUC__)
++#if defined(__aarch64__)
++typedef __fp16 H5__Float16;
++#else
+ __extension__ typedef _Float16 H5__Float16;
++#endif
+ #else
+ typedef _Float16 H5__Float16;
+ #endif
diff --git a/ports/hdf5/portfile.cmake b/ports/hdf5/portfile.cmake
index 35dea12c6e..92110eda85 100644
--- a/ports/hdf5/portfile.cmake
+++ b/ports/hdf5/portfile.cmake
@@ -10,6 +10,7 @@ vcpkg_from_github(
     PATCHES
         hdf5_config.patch
         szip.patch
+	add-_Float16-type-on-aarch64.patch
 )
 
 set(ALLOW_UNSUPPORTED OFF)
diff --git a/ports/hdf5/vcpkg.json b/ports/hdf5/vcpkg.json
index 74c5ea8fd7..0d460a3d7b 100644
--- a/ports/hdf5/vcpkg.json
+++ b/ports/hdf5/vcpkg.json
@@ -1,7 +1,7 @@
 {
   "name": "hdf5",
   "version": "1.14.4.3",
-  "port-version": 1,
+  "port-version": 2,
   "description": "HDF5 is a data model, library, and file format for storing and managing data",
   "homepage": "https://www.hdfgroup.org/downloads/hdf5/",
   "license": "BSD-3-Clause",
diff --git a/versions/baseline.json b/versions/baseline.json
index 4beb453196..ac43c1cfad 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -3398,7 +3398,7 @@
     },
     "hdf5": {
       "baseline": "1.14.4.3",
-      "port-version": 1
+      "port-version": 2
     },
     "hdr-histogram": {
       "baseline": "0.11.8",
diff --git a/versions/h-/hdf5.json b/versions/h-/hdf5.json
index e209f34c6a..0a86c02acf 100644
--- a/versions/h-/hdf5.json
+++ b/versions/h-/hdf5.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "f13d0c544b6c489babc70c6aa60414761566feda",
+      "version": "1.14.4.3",
+      "port-version": 2
+    },
     {
       "git-tree": "78bbbbd55003edb72788c0d49851f16f1b0effbe",
       "version": "1.14.4.3",