diff --git a/crates/nargo_cli/tests/test_data/ecdsa_secp256k1/Nargo.toml b/crates/nargo_cli/tests/test_data/ecdsa_secp256k1/Nargo.toml
new file mode 100644
index 0000000000..7199d3305b
--- /dev/null
+++ b/crates/nargo_cli/tests/test_data/ecdsa_secp256k1/Nargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "ECDSA secp256k1 verification"
+authors = [""]
+compiler_version = "0.1"
+
+[dependencies]
diff --git a/crates/nargo_cli/tests/test_data/ecdsa_secp256k1/Prover.toml b/crates/nargo_cli/tests/test_data/ecdsa_secp256k1/Prover.toml
new file mode 100644
index 0000000000..412c7b36e4
--- /dev/null
+++ b/crates/nargo_cli/tests/test_data/ecdsa_secp256k1/Prover.toml
@@ -0,0 +1,209 @@
+
+hashed_message = [
+    0x3a,
+    0x73,
+    0xf4,
+    0x12,
+    0x3a,
+    0x5c,
+    0xd2,
+    0x12,
+    0x1f,
+    0x21,
+    0xcd,
+    0x7e,
+    0x8d,
+    0x35,
+    0x88,
+    0x35,
+    0x47,
+    0x69,
+    0x49,
+    0xd0,
+    0x35,
+    0xd9,
+    0xc2,
+    0xda,
+    0x68,
+    0x06,
+    0xb4,
+    0x63,
+    0x3a,
+    0xc8,
+    0xc1,
+    0xe2,
+]
+message = [
+    0x49,
+    0x6e,
+    0x73,
+    0x74,
+    0x72,
+    0x75,
+    0x63,
+    0x74,
+    0x69,
+    0x6f,
+    0x6e,
+    0x73,
+    0x20,
+    0x75,
+    0x6e,
+    0x63,
+    0x6c,
+    0x65,
+    0x61,
+    0x72,
+    0x2c,
+    0x20,
+    0x61,
+    0x73,
+    0x6b,
+    0x20,
+    0x61,
+    0x67,
+    0x61,
+    0x69,
+    0x6e,
+    0x20,
+    0x6c,
+    0x61,
+    0x74,
+    0x65,
+    0x72,
+    0x2e,
+]
+pub_key_x = [
+    0xa0,
+    0x43,
+    0x4d,
+    0x9e,
+    0x47,
+    0xf3,
+    0xc8,
+    0x62,
+    0x35,
+    0x47,
+    0x7c,
+    0x7b,
+    0x1a,
+    0xe6,
+    0xae,
+    0x5d,
+    0x34,
+    0x42,
+    0xd4,
+    0x9b,
+    0x19,
+    0x43,
+    0xc2,
+    0xb7,
+    0x52,
+    0xa6,
+    0x8e,
+    0x2a,
+    0x47,
+    0xe2,
+    0x47,
+    0xc7,
+]
+pub_key_y = [
+    0x89,
+    0x3a,
+    0xba,
+    0x42,
+    0x54,
+    0x19,
+    0xbc,
+    0x27,
+    0xa3,
+    0xb6,
+    0xc7,
+    0xe6,
+    0x93,
+    0xa2,
+    0x4c,
+    0x69,
+    0x6f,
+    0x79,
+    0x4c,
+    0x2e,
+    0xd8,
+    0x77,
+    0xa1,
+    0x59,
+    0x3c,
+    0xbe,
+    0xe5,
+    0x3b,
+    0x03,
+    0x73,
+    0x68,
+    0xd7,
+]
+signature = [
+    0xe5,
+    0x08,
+    0x1c,
+    0x80,
+    0xab,
+    0x42,
+    0x7d,
+    0xc3,
+    0x70,
+    0x34,
+    0x6f,
+    0x4a,
+    0x0e,
+    0x31,
+    0xaa,
+    0x2b,
+    0xad,
+    0x8d,
+    0x97,
+    0x98,
+    0xc3,
+    0x80,
+    0x61,
+    0xdb,
+    0x9a,
+    0xe5,
+    0x5a,
+    0x4e,
+    0x8d,
+    0xf4,
+    0x54,
+    0xfd,
+    0x28,
+    0x11,
+    0x98,
+    0x94,
+    0x34,
+    0x4e,
+    0x71,
+    0xb7,
+    0x87,
+    0x70,
+    0xcc,
+    0x93,
+    0x1d,
+    0x61,
+    0xf4,
+    0x80,
+    0xec,
+    0xbb,
+    0x0b,
+    0x89,
+    0xd6,
+    0xeb,
+    0x69,
+    0x69,
+    0x01,
+    0x61,
+    0xe4,
+    0x9a,
+    0x71,
+    0x5f,
+    0xcd,
+    0x55,
+]
diff --git a/crates/nargo_cli/tests/test_data/ecdsa_secp256k1/src/main.nr b/crates/nargo_cli/tests/test_data/ecdsa_secp256k1/src/main.nr
new file mode 100644
index 0000000000..1cb40f09cd
--- /dev/null
+++ b/crates/nargo_cli/tests/test_data/ecdsa_secp256k1/src/main.nr
@@ -0,0 +1,11 @@
+use dep::std;
+
+
+fn main(message : [u8;38],hashed_message : [u8;32], pub_key_x : [u8;32], pub_key_y : [u8;32], signature : [u8;64]) {
+     // Hash the message, since secp256k1 expects a hashed_message
+     let expected= std::hash::sha256(message);
+     assert(hashed_message == expected);
+
+     let x = std::ecdsa_secp256k1::verify_signature(pub_key_x, pub_key_y, signature, hashed_message);
+     assert(x == 1);
+}
\ No newline at end of file
diff --git a/flake.lock b/flake.lock
index 8d6445d3cf..62abdb4a42 100644
--- a/flake.lock
+++ b/flake.lock
@@ -10,11 +10,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1683314474,
-        "narHash": "sha256-gfHYpOnVTfS+4fhScBhfkB/e5z+jPFCi8zSy+aEh+8s=",
+        "lastModified": 1683839119,
+        "narHash": "sha256-pVoW3C5Ek9/878PBzvXqnt51KpIDrxPt5HVtNwdErnE=",
         "owner": "AztecProtocol",
         "repo": "barretenberg",
-        "rev": "ad615ee7dc931d3dbea041e47c96b9d8dccebf98",
+        "rev": "223b9dee2542145d67126cc8a5aa0e9b9d82c244",
         "type": "github"
       },
       "original": {