diff --git a/package-lock.json b/package-lock.json
index efb9c1c..e107c6b 100644
--- a/package-lock.json
+++ b/package-lock.json
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@@ -7062,6 +6966,24 @@
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-        "lodash": "^4.17.11",
-        "yargs": "^12.0.5"
+        "lodash": "^4.17.15",
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+          "resolved": "https://registry.npmjs.org/cliui/-/cliui-5.0.0.tgz",
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-            "strip-ansi": "^4.0.0",
-            "wrap-ansi": "^2.0.0"
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+            "strip-ansi": "^5.2.0",
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@@ -7172,55 +7088,48 @@
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+        "string-width": {
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diff --git a/package.json b/package.json
index 07774c1..d6dd52e 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
   "homepage": "https://github.com/indutny/elliptic",
   "devDependencies": {
     "brfs": "^1.4.3",
-    "coveralls": "^3.0.4",
+    "coveralls": "^3.0.8",
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@@ -43,8 +43,8 @@
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-    "mocha": "^6.1.4"
+    "jshint": "^2.10.3",
+    "mocha": "^6.2.2"
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   "dependencies": {
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