diff --git a/Cargo.toml b/Cargo.toml
index 80a546a0..f8fcdf12 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,7 +20,7 @@ missing_docs = "warn"
 [workspace.dependencies]
 
 tket2 = { path = "./tket2" }
-quantinuum-hugr = { git = "https://github.com/CQCL/hugr", rev = "25d03aa" }
+quantinuum-hugr = { version = "0.1" }
 portgraph = { version = "0.11" }
 pyo3 = { version = "0.20" }
 itertools = { version = "0.12.0" }
diff --git a/tket2/src/circuit.rs b/tket2/src/circuit.rs
index f2e8fd7b..339f48c9 100644
--- a/tket2/src/circuit.rs
+++ b/tket2/src/circuit.rs
@@ -49,8 +49,6 @@ pub trait Circuit: HugrView {
     fn circuit_signature(&self) -> FunctionType {
         self.get_function_type()
             .expect("Circuit has no function type")
-            .body()
-            .clone()
     }
 
     /// Returns the input node to the circuit.