--- a/crates/jrsonnet-stdlib/src/hash.rs
+++ b/crates/jrsonnet-stdlib/src/hash.rs
@@ -5,9 +5,14 @@
 	format!("{:x}", md5::compute(s.as_bytes()))
 }
 
-#[cfg(feature = "exp-more-hashes")]
 #[builtin]
 pub fn builtin_sha256(s: IStr) -> String {
 	use sha2::digest::Digest;
-	format!("{:?}", sha2::Sha256::digest(s.as_bytes()))
+	format!("{:x}", sha2::Sha256::digest(s.as_bytes()))
+}
+
+#[builtin]
+pub fn builtin_sha512(s: IStr) -> String {
+	use sha2::digest::Digest;
+	format!("{:x}", sha2::Sha512::digest(s.as_bytes()))
 }
--- a/crates/jrsonnet-stdlib/src/lib.rs
+++ b/crates/jrsonnet-stdlib/src/lib.rs
@@ -115,6 +115,7 @@
 		// Hash
 		("md5", builtin_md5::INST),
 		("sha256", builtin_sha256::INST),
+		("sha512", builtin_sha512::INST),
 		// Encoding
 		("encodeUTF8", builtin_encode_utf8::INST),
 		("decodeUTF8", builtin_decode_utf8::INST),