diff --git a/spec/chainspecs/testnet/cells/secp256k1_blake2b_lock b/spec/chainspecs/testnet/cells/secp256k1_blake2b_sighash_all
similarity index 97%
rename from spec/chainspecs/testnet/cells/secp256k1_blake2b_lock
rename to spec/chainspecs/testnet/cells/secp256k1_blake2b_sighash_all
index 2c0f2e8934..9620664762 100755
Binary files a/spec/chainspecs/testnet/cells/secp256k1_blake2b_lock and b/spec/chainspecs/testnet/cells/secp256k1_blake2b_sighash_all differ
diff --git a/spec/chainspecs/testnet/testnet.toml b/spec/chainspecs/testnet/testnet.toml
index 09354d9402..fda018a709 100644
--- a/spec/chainspecs/testnet/testnet.toml
+++ b/spec/chainspecs/testnet/testnet.toml
@@ -33,4 +33,4 @@ cycle_length = 12
 # An array list paths to system cell files, which is absolute or relative to
 # the directory containing this config file.
 [[system_cells]]
-path = "cells/secp256k1_blake2b_lock"
+path = "cells/secp256k1_blake2b_sighash_all"
diff --git a/spec/src/lib.rs b/spec/src/lib.rs
index f2281f9a33..fdee65030d 100644
--- a/spec/src/lib.rs
+++ b/spec/src/lib.rs
@@ -260,7 +260,7 @@ pub mod test {
         let data_hash = tx.outputs()[0].data_hash();
         assert_eq!(
             format!("{:x}", data_hash),
-            "fe1cf5a297023a3c5282ecd9b0ca88d6736424d75fbe4dcf47a7c8b303e4d339"
+            "8bddddc3ae2e09c13106634d012525aa32fc47736456dba11514d352845e561d"
         );
     }
 }