diff --git a/other/curves.json b/other/curves.json
index 3539de8..8656e0e 100644
--- a/other/curves.json
+++ b/other/curves.json
@@ -930,7 +930,7 @@
       },
       "params": {
         "a": {
-          "raw": "0xc302f41d932a36cda7a3463093d18db78fce476de1a86294"
+          "raw": "0xc90fdaa22168c234c4c6628b80dc1cd129024e088a67cd10"
         },
         "b": {
           "raw": "0xadf85458a2bb4a9aafdc5620273d3cf1d8b9c583ce2d36a6"