diff --git a/javascript-client/package-lock.json b/javascript-client/package-lock.json
index cce0fa5..7d601ab 100644
--- a/javascript-client/package-lock.json
+++ b/javascript-client/package-lock.json
@@ -1,14 +1,148 @@
 {
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+  "version": "1.1.2",
   "lockfileVersion": 1,
   "requires": true,
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+      "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
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+      "dev": true,
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       "integrity": "sha1-x57Zf380y48robyXkLzDZkdLS3k="
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+      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
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+      "dev": true,
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+          "dev": true,
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@@ -17,17 +151,17 @@
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       "integrity": "sha1-E3kY1teCg/ffemt8WmPhQOaUJeY="
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@@ -46,21 +180,77 @@
         "ms": "2.0.0"
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+      "resolved": "https://registry.npmjs.org/decamelize/-/decamelize-1.2.0.tgz",
+      "integrity": "sha1-9lNNFRSCabIDUue+4m9QH5oZEpA=",
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@@ -98,61 +306,172 @@
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 }
diff --git a/javascript-client/package.json b/javascript-client/package.json
old mode 100755
new mode 100644
index e9c1a37..ee5f94b
--- a/javascript-client/package.json
+++ b/javascript-client/package.json
@@ -14,7 +14,7 @@
     "superagent": "3.5.2"
   },
   "devDependencies": {
-    "mocha": "~2.3.4",
+    "mocha": "~6.2.2",
     "sinon": "1.17.3",
     "expect.js": "~0.3.1"
   }