diff --git a/diced/src/sample_inputs.rs b/diced/src/sample_inputs.rs
index bab296a..14e0efa 100644
--- a/diced/src/sample_inputs.rs
+++ b/diced/src/sample_inputs.rs
@@ -121,13 +121,13 @@
 }
 
 fn make_input_values(
-    code_hash: &[u8; dice::HASH_SIZE],
-    authority_hash: &[u8; dice::HASH_SIZE],
+    code_hash: &dice::Hash,
+    authority_hash: &dice::Hash,
     config_name: &str,
     config_version: u64,
     config_resettable: bool,
     mode: Mode,
-    hidden: &[u8; dice::HIDDEN_SIZE],
+    hidden: &dice::Hidden,
 ) -> Result<BinderInputValues> {
     Ok(BinderInputValues {
         codeHash: *code_hash,
diff --git a/diced/src/utils.rs b/diced/src/utils.rs
index da39f8f..05702ad 100644
--- a/diced/src/utils.rs
+++ b/diced/src/utils.rs
@@ -19,7 +19,7 @@
     Mode::Mode as BinderMode,
 };
 use anyhow::{Context, Result};
-use dice::{ContextImpl, DiceMode};
+use dice::{ContextImpl, DiceMode, Hash, Hidden};
 use diced_open_dice_cbor as dice;
 use keystore2_crypto::ZVec;
 use std::convert::TryInto;
@@ -47,7 +47,7 @@
 }
 
 impl dice::InputValues for InputValues<'_> {
-    fn code_hash(&self) -> &[u8; dice::HASH_SIZE] {
+    fn code_hash(&self) -> &Hash {
         &self.0.codeHash
     }
 
@@ -55,7 +55,7 @@
         dice::Config::Descriptor(self.0.config.desc.as_slice())
     }
 
-    fn authority_hash(&self) -> &[u8; dice::HASH_SIZE] {
+    fn authority_hash(&self) -> &Hash {
         &self.0.authorityHash
     }
 
@@ -73,7 +73,7 @@
         }
     }
 
-    fn hidden(&self) -> &[u8; dice::HIDDEN_SIZE] {
+    fn hidden(&self) -> &Hidden {
         // If `self` was created using try_from the length was checked and this cannot panic.
         &self.0.hidden
     }