diff --git a/package-lock.json b/package-lock.json
index 97be877..093c024 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "version": "2.0.1",
       "license": "MIT",
       "dependencies": {
-        "@hyperbitjs/chains": "~1.4.0",
+        "@hyperbitjs/chains": "~2.0.2",
         "@hyperbitjs/coinkey": "^0.0.2",
         "bitcoinjs-message": "^2.2.0",
         "ecpair": "^2.1.0",
@@ -1036,12 +1036,12 @@
       "license": "BSD-3-Clause"
     },
     "node_modules/@hyperbitjs/chains": {
-      "version": "1.4.0",
-      "resolved": "https://registry.npmjs.org/@hyperbitjs/chains/-/chains-1.4.0.tgz",
-      "integrity": "sha512-Nh4vi1v5jV3NG9greBuBNJLpxox2efdbvgEW504Q9WFPJtck3aR4jqxhUSmvFtBhjPQ4VN9fVABbeSTL22SfNQ==",
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/@hyperbitjs/chains/-/chains-2.0.2.tgz",
+      "integrity": "sha512-GAV2ZgrX5cVnOa7jCRIOjTi7C6bix9q33OhRiKdMxGbEefyiNLGSxF5girAYjjtX2QS45lOVMhPg6uFC+lrcjw==",
       "license": "MIT",
       "engines": {
-        "node": ">=20"
+        "node": ">=16"
       }
     },
     "node_modules/@hyperbitjs/coinkey": {
diff --git a/package.json b/package.json
index 8222ec6..bb7afdd 100644
--- a/package.json
+++ b/package.json
@@ -62,7 +62,7 @@
     "vitest": "^1.1.3"
   },
   "dependencies": {
-    "@hyperbitjs/chains": "~1.4.0",
+    "@hyperbitjs/chains": "~2.0.2",
     "bitcoinjs-message": "^2.2.0",
     "@hyperbitjs/coinkey": "^0.0.2",
     "ecpair": "^2.1.0",