diff --git a/CHANGELOG.adoc b/CHANGELOG.adoc
index b370c41726..af33b67bad 100644
--- a/CHANGELOG.adoc
+++ b/CHANGELOG.adoc
@@ -5,6 +5,12 @@
 
 == DFX
 
+
+=== feat: Enable threshold ecdsa signature
+
+ECDSA signature signing is now enabled by default in new projects, or by running `dfx start --clean`.
+A test key id "Secp256k1:dfx_test_key" is ready to be used by locally created canisters.
+
 === refactor: optimize from ic-wasm
 
 Optimize Rust canister WASM module via ic-wasm library instead of ic-cdk-optimizer.
diff --git a/src/dfx/src/actors/replica.rs b/src/dfx/src/actors/replica.rs
index 891286909b..40ea5b90b9 100644
--- a/src/dfx/src/actors/replica.rs
+++ b/src/dfx/src/actors/replica.rs
@@ -304,6 +304,8 @@ fn replica_start_thread(
             "rocksdb",
             "--subnet-type",
             &config.subnet_type.as_ic_starter_string(),
+            "--ecdsa-keyid",
+            "Secp256k1:dfx_test_key",
         ]);
         if let Some(port) = port {
             cmd.args(&["--http-port", &port.to_string()]);