diff --git a/frame/contracts/src/lib.rs b/frame/contracts/src/lib.rs
index d48a71b85e9fe..e50399e958b94 100644
--- a/frame/contracts/src/lib.rs
+++ b/frame/contracts/src/lib.rs
@@ -1179,6 +1179,7 @@ where
 
 sp_api::decl_runtime_apis! {
 	/// The API used to dry-run contract interactions.
+	#[api_version(2)]
 	pub trait ContractsApi<AccountId, Balance, BlockNumber, Hash> where
 		AccountId: Codec,
 		Balance: Codec,