diff --git a/src/ecdsa/curve.rs b/src/ecdsa/curve.rs
index b98529a..afc9875 100644
--- a/src/ecdsa/curve.rs
+++ b/src/ecdsa/curve.rs
@@ -432,29 +432,29 @@ impl EllipticCurve for P521 {
     
     fn Gx() -> I576 {
         I576::from(U576::from_bytes(&[
-                0xc6, 0x85, 0x8e, 0x06, 0xb7, 0x04, 0x04, 0xe9,
-                0xcd, 0x9e, 0x3e, 0xcb, 0x66, 0x23, 0x95, 0xb4,
-                0x42, 0x9c, 0x64, 0x81, 0x39, 0x05, 0x3f, 0xb5,
-                0x21, 0xf8, 0x28, 0xaf, 0x60, 0x6b, 0x4d, 0x3d,
-                0xba, 0xa1, 0x4b, 0x5e, 0x77, 0xef, 0xe7, 0x59,
-                0x28, 0xfe, 0x1d, 0xc1, 0x27, 0xa2, 0xff, 0xa8,
-                0xde, 0x33, 0x48, 0xb3, 0xc1, 0x85, 0x6a, 0x42,
-                0x9b, 0xf9, 0x7e, 0x7e, 0x31, 0xc2, 0xe5, 0xbd,
-                0x66
+                0x00, 0xc6, 0x85, 0x8e, 0x06, 0xb7, 0x04, 0x04,
+                0xe9, 0xcd, 0x9e, 0x3e, 0xcb, 0x66, 0x23, 0x95,
+                0xb4, 0x42, 0x9c, 0x64, 0x81, 0x39, 0x05, 0x3f,
+                0xb5, 0x21, 0xf8, 0x28, 0xaf, 0x60, 0x6b, 0x4d,
+                0x3d, 0xba, 0xa1, 0x4b, 0x5e, 0x77, 0xef, 0xe7,
+                0x59, 0x28, 0xfe, 0x1d, 0xc1, 0x27, 0xa2, 0xff,
+                0xa8, 0xde, 0x33, 0x48, 0xb3, 0xc1, 0x85, 0x6a,
+                0x42, 0x9b, 0xf9, 0x7e, 0x7e, 0x31, 0xc2, 0xe5,
+                0xbd, 0x66
         ]))
     }
     
     fn Gy() -> I576 {
         I576::from(U576::from_bytes(&[
-                0x18, 0x39, 0x29, 0x6a, 0x78, 0x9a, 0x3b, 0xc0,
-                0x04, 0x5c, 0x8a, 0x5f, 0xb4, 0x2c, 0x7d, 0x1b,
-                0xd9, 0x98, 0xf5, 0x44, 0x49, 0x57, 0x9b, 0x44,
-                0x68, 0x17, 0xaf, 0xbd, 0x17, 0x27, 0x3e, 0x66,
-                0x2c, 0x97, 0xee, 0x72, 0x99, 0x5e, 0xf4, 0x26,
-                0x40, 0xc5, 0x50, 0xb9, 0x01, 0x3f, 0xad, 0x07,
-                0x61, 0x35, 0x3c, 0x70, 0x86, 0xa2, 0x72, 0xc2,
-                0x40, 0x88, 0xbe, 0x94, 0x76, 0x9f, 0xd1, 0x66,
-                0x50
+                0x01, 0x18, 0x39, 0x29, 0x6a, 0x78, 0x9a, 0x3b,
+                0xc0, 0x04, 0x5c, 0x8a, 0x5f, 0xb4, 0x2c, 0x7d,
+                0x1b, 0xd9, 0x98, 0xf5, 0x44, 0x49, 0x57, 0x9b,
+                0x44, 0x68, 0x17, 0xaf, 0xbd, 0x17, 0x27, 0x3e,
+                0x66, 0x2c, 0x97, 0xee, 0x72, 0x99, 0x5e, 0xf4,
+                0x26, 0x40, 0xc5, 0x50, 0xb9, 0x01, 0x3f, 0xad,
+                0x07, 0x61, 0x35, 0x3c, 0x70, 0x86, 0xa2, 0x72,
+                0xc2, 0x40, 0x88, 0xbe, 0x94, 0x76, 0x9f, 0xd1,
+                0x66, 0x50
         ]))
     }
 }