diff --git a/log4js/package-lock.json b/log4js/package-lock.json
index 5e980bd..9ad1927 100644
--- a/log4js/package-lock.json
+++ b/log4js/package-lock.json
@@ -508,12 +508,6 @@
         "hoek": "4.x.x"
       }
     },
-    "bower": {
-      "version": "1.8.4",
-      "resolved": "https://registry.npmjs.org/bower/-/bower-1.8.4.tgz",
-      "integrity": "sha1-54dqB23rgTf30GUl3F6MZtuC8oo=",
-      "dev": true
-    },
     "brace-expansion": {
       "version": "1.1.11",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
@@ -672,17 +666,17 @@
       }
     },
     "chai": {
-      "version": "4.1.2",
-      "resolved": "https://registry.npmjs.org/chai/-/chai-4.1.2.tgz",
-      "integrity": "sha1-D2RYS6ZC8PKs4oBiefTwbKI61zw=",
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-4.2.0.tgz",
+      "integrity": "sha512-XQU3bhBukrOsQCuwZndwGcCVQHyZi53fQ6Ys1Fym7E4olpIqqZZhhoFJoaKVvV17lWQoXYwgWN2nF5crA8J2jw==",
       "dev": true,
       "requires": {
-        "assertion-error": "^1.0.1",
-        "check-error": "^1.0.1",
-        "deep-eql": "^3.0.0",
+        "assertion-error": "^1.1.0",
+        "check-error": "^1.0.2",
+        "deep-eql": "^3.0.1",
         "get-func-name": "^2.0.0",
-        "pathval": "^1.0.0",
-        "type-detect": "^4.0.0"
+        "pathval": "^1.1.0",
+        "type-detect": "^4.0.5"
       }
     },
     "chalk": {
diff --git a/log4js/package.json b/log4js/package.json
index 0c23ac1..a84317a 100644
--- a/log4js/package.json
+++ b/log4js/package.json
@@ -28,7 +28,7 @@
   ],
   "devDependencies": {
     "active-x-obfuscator": "0.0.2",
-    "chai": "^4.1.2",
+    "chai": "^4.2.0",
     "grunt": "^1.0.3",
     "grunt-cli": "^1.3.1",
     "grunt-contrib-clean": "^2.0.0",