diff --git a/package-lock.json b/package-lock.json
index 417f9fd9a4..ccdebe1a68 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -6478,8 +6478,7 @@
         },
         "ansi-regex": {
           "version": "2.1.1",
-          "bundled": true,
-          "optional": true
+          "bundled": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -6497,13 +6496,11 @@
         },
         "balanced-match": {
           "version": "1.0.0",
-          "bundled": true,
-          "optional": true
+          "bundled": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
-          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -6516,18 +6513,15 @@
         },
         "code-point-at": {
           "version": "1.1.0",
-          "bundled": true,
-          "optional": true
+          "bundled": true
         },
         "concat-map": {
           "version": "0.0.1",
-          "bundled": true,
-          "optional": true
+          "bundled": true
         },
         "console-control-strings": {
           "version": "1.1.0",
-          "bundled": true,
-          "optional": true
+          "bundled": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -6630,8 +6624,7 @@
         },
         "inherits": {
           "version": "2.0.3",
-          "bundled": true,
-          "optional": true
+          "bundled": true
         },
         "ini": {
           "version": "1.3.5",
@@ -6641,7 +6634,6 @@
         "is-fullwidth-code-point": {
           "version": "1.0.0",
           "bundled": true,
-          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -6654,20 +6646,17 @@
         "minimatch": {
           "version": "3.0.4",
           "bundled": true,
-          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
         },
         "minimist": {
           "version": "0.0.8",
-          "bundled": true,
-          "optional": true
+          "bundled": true
         },
         "minipass": {
           "version": "2.2.4",
           "bundled": true,
-          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.1",
             "yallist": "^3.0.0"
@@ -6684,7 +6673,6 @@
         "mkdirp": {
           "version": "0.5.1",
           "bundled": true,
-          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -6757,8 +6745,7 @@
         },
         "number-is-nan": {
           "version": "1.0.1",
-          "bundled": true,
-          "optional": true
+          "bundled": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -6768,7 +6755,6 @@
         "once": {
           "version": "1.4.0",
           "bundled": true,
-          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -6844,8 +6830,7 @@
         },
         "safe-buffer": {
           "version": "5.1.1",
-          "bundled": true,
-          "optional": true
+          "bundled": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -6875,7 +6860,6 @@
         "string-width": {
           "version": "1.0.2",
           "bundled": true,
-          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -6893,7 +6877,6 @@
         "strip-ansi": {
           "version": "3.0.1",
           "bundled": true,
-          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -6932,13 +6915,11 @@
         },
         "wrappy": {
           "version": "1.0.2",
-          "bundled": true,
-          "optional": true
+          "bundled": true
         },
         "yallist": {
           "version": "3.0.2",
-          "bundled": true,
-          "optional": true
+          "bundled": true
         }
       }
     },
diff --git a/package.json b/package.json
index efeca2aff2..a9b35b2958 100644
--- a/package.json
+++ b/package.json
@@ -105,7 +105,6 @@
     "eslint-plugin-jest": "^21.25.1",
     "eslint-plugin-jsx-a11y": "^6.0.3",
     "eslint-plugin-react": "^7.7.0",
-    "estraverse": "^4.2.0",
     "file-loader": "^2.0.0",
     "html-webpack-plugin": "^3.2.0",
     "jest": "^23.6.0",