diff --git a/reactjs-basics-part-1/package-lock.json b/reactjs-basics-part-1/package-lock.json
index 83c3bf82..2f8fde64 100644
--- a/reactjs-basics-part-1/package-lock.json
+++ b/reactjs-basics-part-1/package-lock.json
@@ -1630,14 +1630,21 @@
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-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.10.0.tgz",
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+      "version": "6.12.6",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
+      "integrity": "sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==",
       "requires": {
-        "fast-deep-equal": "^2.0.1",
+        "fast-deep-equal": "^3.1.1",
         "fast-json-stable-stringify": "^2.0.0",
         "json-schema-traverse": "^0.4.1",
         "uri-js": "^4.2.2"
+      },
+      "dependencies": {
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+          "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz",
+          "integrity": "sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q=="
+        }
       }
     },
     "ajv-errors": {
@@ -2742,7 +2749,8 @@
             },
             "ansi-regex": {
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+              "bundled": true,
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@@ -2760,11 +2768,13 @@
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             "balanced-match": {
               "version": "1.0.0",
-              "bundled": true
+              "bundled": true,
+              "optional": true
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             "brace-expansion": {
               "version": "1.1.11",
               "bundled": true,
+              "optional": true,
               "requires": {
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                 "concat-map": "0.0.1"
@@ -2777,15 +2787,18 @@
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             "code-point-at": {
               "version": "1.1.0",
-              "bundled": true
+              "bundled": true,
+              "optional": true
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             "concat-map": {
               "version": "0.0.1",
-              "bundled": true
+              "bundled": true,
+              "optional": true
             },
             "console-control-strings": {
               "version": "1.1.0",
-              "bundled": true
+              "bundled": true,
+              "optional": true
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@@ -2888,7 +2901,8 @@
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             "inherits": {
               "version": "2.0.3",
-              "bundled": true
+              "bundled": true,
+              "optional": true
             },
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               "version": "1.3.5",
@@ -2898,6 +2912,7 @@
             "is-fullwidth-code-point": {
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               "bundled": true,
+              "optional": true,
               "requires": {
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               }
@@ -2910,17 +2925,20 @@
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               "bundled": true,
+              "optional": true,
               "requires": {
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               }
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             "minimist": {
               "version": "0.0.8",
-              "bundled": true
+              "bundled": true,
+              "optional": true
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             "minipass": {
               "version": "2.3.5",
               "bundled": true,
+              "optional": true,
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@@ -2937,6 +2955,7 @@
             "mkdirp": {
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               "bundled": true,
+              "optional": true,
               "requires": {
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               }
@@ -3009,7 +3028,8 @@
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-              "bundled": true
+              "bundled": true,
+              "optional": true
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               "version": "4.1.1",
@@ -3019,6 +3039,7 @@
             "once": {
               "version": "1.4.0",
               "bundled": true,
+              "optional": true,
               "requires": {
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               }
@@ -3094,7 +3115,8 @@
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@@ -3124,6 +3146,7 @@
             "string-width": {
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               "bundled": true,
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               "requires": {
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@@ -3141,6 +3164,7 @@
             "strip-ansi": {
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               "bundled": true,
+              "optional": true,
               "requires": {
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               }
@@ -3179,11 +3203,13 @@
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             "wrappy": {
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+              "bundled": true,
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-              "bundled": true
+              "bundled": true,
+              "optional": true
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@@ -5071,11 +5097,6 @@
       "resolved": "https://registry.npmjs.org/extsprintf/-/extsprintf-1.3.0.tgz",
       "integrity": "sha1-lpGEQOMEGnpBT4xS48V06zw+HgU="
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-      "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-2.0.1.tgz",
-      "integrity": "sha1-ewUhjd+WZ79/Nwv3/bLLFf3Qqkk="
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@@ -6603,7 +6624,8 @@
             },
             "ansi-regex": {
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-              "bundled": true
+              "bundled": true,
+              "optional": true
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               "version": "1.2.0",
@@ -6621,11 +6643,13 @@
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             "balanced-match": {
               "version": "1.0.0",
-              "bundled": true
+              "bundled": true,
+              "optional": true
             },
             "brace-expansion": {
               "version": "1.1.11",
               "bundled": true,
+              "optional": true,
               "requires": {
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                 "concat-map": "0.0.1"
@@ -6638,15 +6662,18 @@
             },
             "code-point-at": {
               "version": "1.1.0",
-              "bundled": true
+              "bundled": true,
+              "optional": true
             },
             "concat-map": {
               "version": "0.0.1",
-              "bundled": true
+              "bundled": true,
+              "optional": true
             },
             "console-control-strings": {
               "version": "1.1.0",
-              "bundled": true
+              "bundled": true,
+              "optional": true
             },
             "core-util-is": {
               "version": "1.0.2",
@@ -6749,7 +6776,8 @@
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             "inherits": {
               "version": "2.0.3",
-              "bundled": true
+              "bundled": true,
+              "optional": true
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               "version": "1.3.5",
@@ -6759,6 +6787,7 @@
             "is-fullwidth-code-point": {
               "version": "1.0.0",
               "bundled": true,
+              "optional": true,
               "requires": {
                 "number-is-nan": "^1.0.0"
               }
@@ -6771,17 +6800,20 @@
             "minimatch": {
               "version": "3.0.4",
               "bundled": true,
+              "optional": true,
               "requires": {
                 "brace-expansion": "^1.1.7"
               }
             },
             "minimist": {
               "version": "0.0.8",
-              "bundled": true
+              "bundled": true,
+              "optional": true
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             "minipass": {
               "version": "2.3.5",
               "bundled": true,
+              "optional": true,
               "requires": {
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                 "yallist": "^3.0.0"
@@ -6798,6 +6830,7 @@
             "mkdirp": {
               "version": "0.5.1",
               "bundled": true,
+              "optional": true,
               "requires": {
                 "minimist": "0.0.8"
               }
@@ -6870,7 +6903,8 @@
             },
             "number-is-nan": {
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               "version": "4.1.1",
@@ -6880,6 +6914,7 @@
             "once": {
               "version": "1.4.0",
               "bundled": true,
+              "optional": true,
               "requires": {
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               }
@@ -6955,7 +6990,8 @@
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             "safe-buffer": {
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+              "bundled": true,
+              "optional": true
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@@ -6985,6 +7021,7 @@
             "string-width": {
               "version": "1.0.2",
               "bundled": true,
+              "optional": true,
               "requires": {
                 "code-point-at": "^1.0.0",
                 "is-fullwidth-code-point": "^1.0.0",
@@ -7002,6 +7039,7 @@
             "strip-ansi": {
               "version": "3.0.1",
               "bundled": true,
+              "optional": true,
               "requires": {
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               }
@@ -7040,11 +7078,13 @@
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             "wrappy": {
               "version": "1.0.2",
-              "bundled": true
+              "bundled": true,
+              "optional": true
             },
             "yallist": {
               "version": "3.0.3",
-              "bundled": true
+              "bundled": true,
+              "optional": true
             }
           }
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