diff --git a/substrate/Cargo.lock b/substrate/Cargo.lock
index c25d04393b..140b21dbda 100644
--- a/substrate/Cargo.lock
+++ b/substrate/Cargo.lock
@@ -1064,6 +1064,7 @@ version = "0.1.0"
 dependencies = [
  "blake2-rfc 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crunchy 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "fixed-hash 0.1.3 (git+https://github.com/rphmeier/primitives.git?branch=compile-for-wasm)",
  "polkadot-runtime-codec 0.1.0",
  "polkadot-serializer 0.1.0",
diff --git a/substrate/executor/src/wasm_executor.rs b/substrate/executor/src/wasm_executor.rs
index f44c0414d1..c7f9073aab 100644
--- a/substrate/executor/src/wasm_executor.rs
+++ b/substrate/executor/src/wasm_executor.rs
@@ -287,6 +287,8 @@ mod tests {
 	use native_runtime::support::{one, two, StaticHexInto};
 	use native_runtime::runtime::staking::balance;
 
+	fn tx() -> Vec<u8> { "2f8c6129d816cf51c374bc7f08c3e63ed156cf78aefb4a6550d97b87997977ee000000000000000002d75a980182b10ab7d54bfed3c964073a0ee172f3daa62325af021a68f707511a4500000000000000b543b41e4b7a0270eddf57ed6c435df04bb63f71c79f6ae2530ab26c734bb4e8cd57b1c190c41d5791bcdea66a16c7339b1e883e5d0538ea2d9acea800d60a00".convert() }
+
 	#[test]
 	fn returning_should_work() {
 		let mut ext = TestExternalities::default();
@@ -393,8 +395,6 @@ mod tests {
 		);
 	}
 
-	fn tx() -> Vec<u8> { "679fcf0a846b4224c84ecad7d91a26241c46d00cb53d6480a363274e8965ee34b0b80b4b2e3836d3d8f8f12c0c1aef7350af587d9aee3883561d11726068ac0a2f8c6129d816cf51c374bc7f08c3e63ed156cf78aefb4a6550d97b87997977ee00000000000000000228000000d75a980182b10ab7d54bfed3c964073a0ee172f3daa62325af021a68f707511a4500000000000000".convert() }
-
 	#[test]
 	fn panic_execution_gives_error() {
 		let one = one();
diff --git a/substrate/rpc/src/chain/tests.rs b/substrate/rpc/src/chain/tests.rs
index 18be4f7b1c..952b20b35c 100644
--- a/substrate/rpc/src/chain/tests.rs
+++ b/substrate/rpc/src/chain/tests.rs
@@ -23,7 +23,7 @@ fn should_return_header() {
 	let client = client::new_in_mem(executor::executor()).unwrap();
 
 	assert_matches!(
-		ChainApi::header(&client, "11265ce45dd2baaaf071f6df8c5a44f0ed1d85a50e71451ff2d4345e57d12e3a".into()),
+		ChainApi::header(&client, "af65e54217fb213853703d57b80fc5b2bb834bf923046294d7a49bff62f0a8b2".into()),
 		Ok(Some(ref x)) if x == &block::Header {
 			parent_hash: 0.into(),
 			number: 0,
diff --git a/substrate/rpc/src/state/tests.rs b/substrate/rpc/src/state/tests.rs
index b62221adea..556fa8cfce 100644
--- a/substrate/rpc/src/state/tests.rs
+++ b/substrate/rpc/src/state/tests.rs
@@ -23,7 +23,7 @@ use client;
 #[test]
 fn should_return_storage() {
 	let client = client::new_in_mem(executor::executor()).unwrap();
-	let genesis_hash = "11265ce45dd2baaaf071f6df8c5a44f0ed1d85a50e71451ff2d4345e57d12e3a".into();
+	let genesis_hash = "af65e54217fb213853703d57b80fc5b2bb834bf923046294d7a49bff62f0a8b2".into();
 
 	assert_matches!(
 		StateApi::storage(&client, StorageKey(vec![10]), genesis_hash),
@@ -36,7 +36,7 @@ fn should_return_storage() {
 fn should_call_contract() {
 	// TODO [ToDr] Fix test after we are able to mock state.
 	let client = client::new_in_mem(executor::executor()).unwrap();
-	let genesis_hash = "11265ce45dd2baaaf071f6df8c5a44f0ed1d85a50e71451ff2d4345e57d12e3a".into();
+	let genesis_hash = "af65e54217fb213853703d57b80fc5b2bb834bf923046294d7a49bff62f0a8b2".into();
 
 	assert_matches!(
 		StateApi::call(&client, "balanceOf".into(), CallData(vec![1,2,3]), genesis_hash),