diff --git a/package-lock.json b/package-lock.json
index 4a0a21f..c3ff578 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -175,9 +175,9 @@
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-      "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.12.0.tgz",
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+      "version": "4.12.2",
+      "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.12.2.tgz",
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     },
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@@ -210,7 +210,7 @@
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-      "integrity": "sha1-EsJe/kCkXjwyPrhnWgoM5XsiNx8="
+      "integrity": "sha512-cKV8tMCEpQs4hK/ik71d6LrPOnpkpGBR0wzxqr68g2m/LB2GxVYQroAjMJZRVM1Y4BCjCKc3vAamxSzOY2RP+w=="
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     "node_modules/browserify-aes": {
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@@ -477,9 +477,9 @@
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     "node_modules/elliptic": {
-      "version": "6.5.4",
-      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.4.tgz",
-      "integrity": "sha512-iLhC6ULemrljPZb+QutR5TQGB+pdW6KGD5RSegS+8sorOZT+rdQFbsQFJgvN3eRqNALqJer4oQ16YvJHlU8hzQ==",
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+      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.6.1.tgz",
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@@ -742,7 +742,7 @@
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-      "integrity": "sha1-0nRXAQJabHdabFRXk+1QL8DGSaE=",
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@@ -936,7 +936,7 @@
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-      "integrity": "sha1-9sAMHAsIIkblxNmd+4x8CDsrWCo="
+      "integrity": "sha512-JIYlbt6g8i5jKfJ3xz7rF0LXmv2TkDxBLUkiBeZ7bAx4GnnNMr8xFpGnOxn6GhTEHx3SjRrZEoU+j04prX1ktg=="
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@@ -1256,9 +1256,9 @@
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-      "resolved": "https://registry.npmjs.org/secp256k1/-/secp256k1-3.8.0.tgz",
-      "integrity": "sha512-k5ke5avRZbtl9Tqx/SA7CbY3NF6Ro+Sj9cZxezFzuBlLDmyqPiL8hJJ+EmzD8Ig4LUDByHJ3/iPOVoRixs/hmw==",
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+      "resolved": "https://registry.npmjs.org/secp256k1/-/secp256k1-3.8.1.tgz",
+      "integrity": "sha512-tArjQw2P0RTdY7QmkNehgp6TVvQXq6ulIhxv8gaH6YubKG/wxxAoNKcbuXjDhybbc+b2Ihc7e0xxiGN744UIiQ==",
       "hasInstallScript": true,
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@@ -1266,7 +1266,7 @@
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         "drbg.js": "^1.0.1",
-        "elliptic": "^6.5.2",
+        "elliptic": "^6.5.7",
         "nan": "^2.14.0",
         "safe-buffer": "^5.1.2"
       },