diff --git a/hermit-sys/Cargo.toml b/hermit-sys/Cargo.toml
index 157cdb00d..5704e5bbe 100644
--- a/hermit-sys/Cargo.toml
+++ b/hermit-sys/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "hermit-sys"
-version = "0.5.2"
+version = "0.5.3"
 authors = ["Stefan Lankes"]
 license = "MIT OR Apache-2.0"
 description = "FFI bindings to HermitCore"
diff --git a/hermit-sys/build.rs b/hermit-sys/build.rs
index b2e92ef7e..c5849de81 100644
--- a/hermit-sys/build.rs
+++ b/hermit-sys/build.rs
@@ -35,7 +35,7 @@ impl KernelSrc {
 	}
 
 	fn download() -> Self {
-		let version = "0.6.3";
+		let version = "0.6.4";
 		let out_dir = out_dir();
 		let src_dir = out_dir.join(format!("libhermit-rs-{version}"));
 
diff --git a/libhermit-rs b/libhermit-rs
index 72c09a0b2..4f1589368 160000
--- a/libhermit-rs
+++ b/libhermit-rs
@@ -1 +1 @@
-Subproject commit 72c09a0b297d6682c91f1be3ca4105b7d35e2e29
+Subproject commit 4f1589368808a37a2a349a172ac338afaa88b4bf