diff --git a/package-lock.json b/package-lock.json
index 0d925b6..0d22512 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4,6 +4,68 @@
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@@ -790,6 +911,16 @@
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@@ -5835,6 +6301,19 @@
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-        "lodash": "^4.17.11",
-        "yargs": "^12.0.5"
+        "lodash": "^4.17.15",
+        "yargs": "^13.3.0"
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+        "yargs-parser": {
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+          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.2.tgz",
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diff --git a/package.json b/package.json
index 5fd45cf..415c42d 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
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     "chai": "^4.2.0",
     "fast-png": "^4.0.1",
-    "mocha": "^6.1.4",
+    "mocha": "^6.2.3",
     "ts-loader": "^5.3.3",
     "ts-node": "^8.1.0",
     "typescript": "^3.4.4",