diff --git a/package.json b/package.json
index f275524..a5fa936 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
 		"browserify-rsa": "^4.1.0",
 		"create-hash": "^1.2.0",
 		"create-hmac": "^1.1.7",
-		"elliptic": "^6.5.4",
+		"elliptic": "=6.5.1",
 		"inherits": "^2.0.4",
 		"parse-asn1": "^5.1.6",
 		"readable-stream": "^3.6.2",