diff --git a/hdf5-src/build.rs b/hdf5-src/build.rs
index c847aa15..c6bcc150 100644
--- a/hdf5-src/build.rs
+++ b/hdf5-src/build.rs
@@ -20,6 +20,7 @@ fn main() {
         "HDF5_BUILD_CPP_LIB",
         "HDF5_BUILD_UTILS",
         "HDF5_ENABLE_PARALLEL",
+        "HDF5_ENABLE_NONSTANDARD_FEATURES",
     ] {
         cfg.define(option, "OFF");
     }
@@ -30,6 +31,7 @@ fn main() {
         "HDF5_ENABLE_THREADSAFE",
         "ALLOW_UNSUPPORTED",
         "HDF5_BUILD_HL_LIB",
+        "HDF5_ENABLE_NONSTANDARD_FEATURE_FLOAT16",
     ] {
         cfg.define(option, "OFF");
     }
diff --git a/hdf5-src/ext/hdf5 b/hdf5-src/ext/hdf5
index 8b5cac6b..57948148 160000
--- a/hdf5-src/ext/hdf5
+++ b/hdf5-src/ext/hdf5
@@ -1 +1 @@
-Subproject commit 8b5cac6bc498546efa5639f99bb7dbbc1a2d5d90
+Subproject commit 57948148dbcb275c9a39212eebc62e071b11a00d
diff --git a/hdf5-sys/build.rs b/hdf5-sys/build.rs
index a27c5dfa..9fd9bec7 100644
--- a/hdf5-sys/build.rs
+++ b/hdf5-sys/build.rs
@@ -659,7 +659,7 @@ impl Config {
         let mut vs: Vec<_> = (5..=21).map(|v| Version::new(1, 8, v)).collect(); // 1.8.[5-23]
         vs.extend((0..=8).map(|v| Version::new(1, 10, v))); // 1.10.[0-10]
         vs.extend((0..=2).map(|v| Version::new(1, 12, v))); // 1.12.[0-2]
-        vs.extend((0..=2).map(|v| Version::new(1, 14, v))); // 1.14.[0-2]
+        vs.extend((0..=4).map(|v| Version::new(1, 14, v))); // 1.14.[0-4]
         for v in vs.into_iter().filter(|&v| version >= v) {
             println!("cargo:rustc-cfg=feature=\"{}.{}.{}\"", v.major, v.minor, v.micro);
             println!("cargo:version_{}_{}_{}=1", v.major, v.minor, v.micro);