diff --git a/package-lock.json b/package-lock.json
index b201c16..b47d2d1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -238,13 +238,13 @@
       "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.4.1.tgz",
       "integrity": "sha512-BsXLz5sqX8OHcsh7CqBMztyXARmGQ3LWPtGjJi6DiJHq5C/qvi9P3OqgswKSDftbu8+IoI/QDTAm2fFnQ9SZSQ==",
       "requires": {
-        "bn.js": "4.11.8",
-        "brorand": "1.1.0",
-        "hash.js": "1.1.5",
-        "hmac-drbg": "1.0.1",
-        "inherits": "2.0.3",
-        "minimalistic-assert": "1.0.1",
-        "minimalistic-crypto-utils": "1.0.1"
+        "bn.js": "^4.4.0",
+        "brorand": "^1.0.1",
+        "hash.js": "^1.0.0",
+        "hmac-drbg": "^1.0.0",
+        "inherits": "^2.0.1",
+        "minimalistic-assert": "^1.0.0",
+        "minimalistic-crypto-utils": "^1.0.0"
       }
     },
     "escape-string-regexp": {