diff --git a/Cargo.lock b/Cargo.lock
index cfc37b4..3898b9a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -377,6 +377,7 @@ dependencies = [
  "cultcache-rs",
  "rmp-serde",
  "serde",
+ "serde_bytes",
 ]
 
 [[package]]
diff --git a/crates/thing-contract/Cargo.toml b/crates/thing-contract/Cargo.toml
index e261137..f3ffd0f 100644
--- a/crates/thing-contract/Cargo.toml
+++ b/crates/thing-contract/Cargo.toml
@@ -9,6 +9,7 @@ publish = false
 anyhow = { workspace = true }
 cultcache-rs = { workspace = true }
 serde = { workspace = true }
+serde_bytes = "0.11"
 
 [dev-dependencies]
 rmp-serde = { workspace = true }
diff --git a/crates/thing-contract/tests/goldens/.gitattributes b/crates/thing-contract/tests/goldens/.gitattributes
new file mode 100644
index 0000000..fa1385d
--- /dev/null
+++ b/crates/thing-contract/tests/goldens/.gitattributes
@@ -0,0 +1 @@
+* -text