diff --git a/internal/rosa/all.go b/internal/rosa/all.go
index 28aa1c8..992c28e 100644
--- a/internal/rosa/all.go
+++ b/internal/rosa/all.go
@@ -87,6 +87,7 @@ const (
 	NSS
 	NSSCACert
 	Ncurses
+	Nettle
 	Ninja
 	OpenSSL
 	PCRE2
diff --git a/internal/rosa/nettle.go b/internal/rosa/nettle.go
new file mode 100644
index 0000000..2384891
--- /dev/null
+++ b/internal/rosa/nettle.go
@@ -0,0 +1,31 @@
+package rosa
+
+import "hakurei.app/internal/pkg"
+
+func (t Toolchain) newNettle() (pkg.Artifact, string) {
+	const (
+		version  = "4.0"
+		checksum = "6agC-vHzzoqAlaX3K9tX8yHgrm03HLqPZzVzq8jh_ePbuPMIvpxereu_uRJFmQK7"
+	)
+	return t.NewPackage("nettle", version, pkg.NewHTTPGetTar(
+		nil, "https://ftpmirror.gnu.org/gnu/nettle/nettle-"+version+".tar.gz",
+		mustDecode(checksum),
+		pkg.TarGzip,
+	), nil, (*MakeHelper)(nil),
+		M4,
+		Diffutils,
+
+		GMP,
+	), version
+}
+func init() {
+	artifactsM[Nettle] = Metadata{
+		f: Toolchain.newNettle,
+
+		Name:        "nettle",
+		Description: "a low-level cryptographic library",
+		Website:     "https://www.lysator.liu.se/~nisse/nettle/",
+
+		ID: 2073,
+	}
+}