diff --git a/package-lock.json b/package-lock.json
index 5369c1c..6fea818 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -176,7 +176,7 @@
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-      "resolved": "http://registry.npmjs.org/async/-/async-1.0.0.tgz",
+      "resolved": "https://registry.npmjs.org/async/-/async-1.0.0.tgz",
       "integrity": "sha1-+PwEyjoTeErenhZBr5hXjPvWR6k=",
       "dev": true,
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@@ -802,7 +802,7 @@
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         "readable-stream": {
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-          "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
           "integrity": "sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==",
           "dev": true,
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@@ -1216,9 +1216,9 @@
       "dev": true
     },
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-      "version": "6.5.1",
-      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.1.tgz",
-      "integrity": "sha512-xvJINNLbTeWQjrl6X+7eQCrIy/YPv5XCpKW6kB5mKvtnGILoLDcySuwomfdzt0BMdLNVnuRNTuzKNHj0bva1Cg==",
+      "version": "6.5.3",
+      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.3.tgz",
+      "integrity": "sha512-IMqzv5wNQf+E6aHeIqATs0tOLeOTwj1QKbRcS3jBbYkl5oLAserA8yJTT7/VyHUYG91PRmPyeQDObKLPpeS4dw==",
       "requires": {
         "bn.js": "^4.4.0",
         "brorand": "^1.0.1",
@@ -1964,7 +1964,7 @@
     },
     "jsonfile": {
       "version": "2.4.0",
-      "resolved": "http://registry.npmjs.org/jsonfile/-/jsonfile-2.4.0.tgz",
+      "resolved": "https://registry.npmjs.org/jsonfile/-/jsonfile-2.4.0.tgz",
       "integrity": "sha1-NzaitCi4e72gzIO1P6PWM6NcKug=",
       "dev": true,
       "optional": true,
@@ -2287,7 +2287,7 @@
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     "minimist": {
       "version": "0.0.8",
-      "resolved": "http://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
+      "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
       "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=",
       "dev": true
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@@ -2832,7 +2832,7 @@
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-      "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-1.1.14.tgz",
+      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-1.1.14.tgz",
       "integrity": "sha1-fPTFTvZI44EwhMY23SB54WbAgdk=",
       "dev": true,
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diff --git a/package.json b/package.json
index 0194d19..e0f6e20 100644
--- a/package.json
+++ b/package.json
@@ -51,7 +51,7 @@
   },
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     "acorn": "7.1.0",
-    "elliptic": "6.5.1",
+    "elliptic": "6.5.3",
     "es6-promise": "4.2.8",
     "nan": "2.14.0"
   },