diff --git a/composer.json b/composer.json
index e22d28281..5e79ea24a 100644
--- a/composer.json
+++ b/composer.json
@@ -22,7 +22,7 @@
     "pleonasm/merkle-tree": "~1.0.0",
     "composer/semver": "^1.4.0|^3.2.0",
     "lastguest/murmurhash": "^v2.0.0",
-    "selaz/ecc": "dev-master",
+    "paragonie/ecc": "^2",
     "selaz/buffertools": "dev-master",
     "bitwasp/bech32": "^0.0.1"
   },