diff --git a/keyfork-slip10-test-data/src/lib.rs b/keyfork-slip10-test-data/src/lib.rs
index 521d6b8..a525098 100644
--- a/keyfork-slip10-test-data/src/lib.rs
+++ b/keyfork-slip10-test-data/src/lib.rs
@@ -18,10 +18,10 @@ pub struct TestData {
     pub tests: Vec<Test>,
 }
 
-const SECP256K1_256: &str = "fffcf9f6f3f0edeae7e4e1dedbd8d5d2cfccc9c6c3c0bdbab7b4b1aeaba8a5a2\
+const SECP256K1_512: &str = "fffcf9f6f3f0edeae7e4e1dedbd8d5d2cfccc9c6c3c0bdbab7b4b1aeaba8a5a2\
                              9f9c999693908d8a8784817e7b7875726f6c696663605d5a5754514e4b484542";
 
-const ED25519_256: &str = "fffcf9f6f3f0edeae7e4e1dedbd8d5d2cfccc9c6c3c0bdbab7b4b1aeaba8a5a2\
+const ED25519_512: &str = "fffcf9f6f3f0edeae7e4e1dedbd8d5d2cfccc9c6c3c0bdbab7b4b1aeaba8a5a2\
                            9f9c999693908d8a8784817e7b7875726f6c696663605d5a5754514e4b484542";
 
 // Note: This should never error.
@@ -113,7 +113,7 @@ pub fn test_data() -> Result<HashMap<String, Vec<TestData>>, Box<dyn std::error:
             ],
         },
         TestData {
-            seed: hex::decode(SECP256K1_256)?,
+            seed: hex::decode(SECP256K1_512)?,
             tests: vec![
                 Test {
                     chain: "m",
@@ -253,7 +253,7 @@ pub fn test_data() -> Result<HashMap<String, Vec<TestData>>, Box<dyn std::error:
             ],
         },
         TestData {
-            seed: hex::decode(ED25519_256)?,
+            seed: hex::decode(ED25519_512)?,
             tests: vec![
                 Test {
                     chain: "m",