diff --git a/package-lock.json b/package-lock.json
index cb96ddf..c61f0ee 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -547,19 +547,10 @@
       }
     },
     "chai": {
-      "version": "4.5.0",
-      "resolved": "https://registry.npmjs.org/chai/-/chai-4.5.0.tgz",
-      "integrity": "sha512-RITGBfijLkBddZvnn8jdqoTypxvqbOLYQkGGxXzeFjVHvudaPw0HNFD9x928/eUwYWd2dPCugVqspGALTZZQKw==",
-      "dev": true,
-      "requires": {
-        "assertion-error": "^1.1.0",
-        "check-error": "^1.0.3",
-        "deep-eql": "^4.1.3",
-        "get-func-name": "^2.0.2",
-        "loupe": "^2.3.6",
-        "pathval": "^1.1.1",
-        "type-detect": "^4.1.0"
-      }
+      "version": "6.2.2",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-6.2.2.tgz",
+      "integrity": "sha512-NUPRluOfOiTKBKvWPtSD4PhFvWCqOi0BGStNWs57X9js7XGTprSmFoz5F0tWhR4WPjNeR9jXqdC7/UpSJTnlRg==",
+      "dev": true
     },
     "chalk": {
       "version": "2.4.1",
@@ -2861,6 +2852,23 @@
         "propagate": "^1.0.0",
         "qs": "^6.5.1",
         "semver": "^5.5.0"
+      },
+      "dependencies": {
+        "chai": {
+          "version": "4.5.0",
+          "resolved": "https://registry.npmjs.org/chai/-/chai-4.5.0.tgz",
+          "integrity": "sha512-RITGBfijLkBddZvnn8jdqoTypxvqbOLYQkGGxXzeFjVHvudaPw0HNFD9x928/eUwYWd2dPCugVqspGALTZZQKw==",
+          "dev": true,
+          "requires": {
+            "assertion-error": "^1.1.0",
+            "check-error": "^1.0.3",
+            "deep-eql": "^4.1.3",
+            "get-func-name": "^2.0.2",
+            "loupe": "^2.3.6",
+            "pathval": "^1.1.1",
+            "type-detect": "^4.1.0"
+          }
+        }
       }
     },
     "nopt": {
diff --git a/package.json b/package.json
index 988d2b5..c88d024 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
     "request-promise": "4.2.6"
   },
   "devDependencies": {
-    "chai": "4.5.0",
+    "chai": "6.2.2",
     "eslint": "5.16.0",
     "eslint-config-standard": "11.0.0",
     "eslint-plugin-import": "2.32.0",