diff --git a/04-react-state-part-1/instructor/react-film/package-lock.json b/04-react-state-part-1/instructor/react-film/package-lock.json
index 78da343..1be405a 100644
--- a/04-react-state-part-1/instructor/react-film/package-lock.json
+++ b/04-react-state-part-1/instructor/react-film/package-lock.json
@@ -63,7 +63,7 @@
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-          "resolved": "http://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz",
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-          "resolved": "http://registry.npmjs.org/util/-/util-0.10.3.tgz",
+          "resolved": "https://registry.npmjs.org/util/-/util-0.10.3.tgz",
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-      "resolved": "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+      "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
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@@ -2057,7 +2063,8 @@
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@@ -2067,6 +2074,7 @@
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@@ -2079,17 +2087,20 @@
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-              "bundled": true
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@@ -2106,6 +2117,7 @@
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@@ -2178,7 +2190,8 @@
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@@ -2188,6 +2201,7 @@
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@@ -2348,11 +2365,13 @@
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-          "resolved": "http://registry.npmjs.org/doctrine/-/doctrine-1.5.0.tgz",
+          "resolved": "https://registry.npmjs.org/doctrine/-/doctrine-1.5.0.tgz",
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@@ -4459,6 +4481,7 @@
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@@ -4466,6 +4489,7 @@
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@@ -4473,7 +4497,8 @@
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@@ -4546,7 +4576,8 @@
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@@ -4642,6 +4676,7 @@
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@@ -4653,7 +4688,8 @@
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@@ -4709,7 +4747,8 @@
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@@ -4719,6 +4758,7 @@
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@@ -4730,7 +4770,8 @@
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@@ -4793,11 +4834,13 @@
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@@ -4805,17 +4848,20 @@
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           "bundled": true,
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           "requires": {
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         "minimist": {
           "version": "0.0.8",
-          "bundled": true
+          "bundled": true,
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@@ -4863,7 +4909,8 @@
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@@ -4878,6 +4925,7 @@
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           "bundled": true,
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@@ -4903,7 +4951,8 @@
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@@ -4912,7 +4961,8 @@
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@@ -4945,6 +4995,7 @@
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@@ -4987,13 +5038,15 @@
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@@ -5044,6 +5097,7 @@
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           "bundled": true,
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@@ -5053,6 +5107,7 @@
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@@ -5065,6 +5120,7 @@
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+          "optional": true,
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@@ -5077,6 +5133,7 @@
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           "bundled": true,
+          "optional": true,
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@@ -5126,7 +5183,8 @@
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@@ -5151,7 +5209,8 @@
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-      "resolved": "http://registry.npmjs.org/os-locale/-/os-locale-1.4.0.tgz",
+      "resolved": "https://registry.npmjs.org/os-locale/-/os-locale-1.4.0.tgz",
       "integrity": "sha1-IPnxeuKe00XoveWDsT0gCYA8FNk=",
       "requires": {
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@@ -7713,7 +7772,7 @@
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     "pify": {
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-      "resolved": "http://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
+      "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
       "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw="
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@@ -7754,7 +7813,7 @@
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-          "resolved": "http://registry.npmjs.org/async/-/async-1.5.2.tgz",
+          "resolved": "https://registry.npmjs.org/async/-/async-1.5.2.tgz",
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@@ -10248,7 +10307,7 @@
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-          "resolved": "http://registry.npmjs.org/uuid/-/uuid-2.0.3.tgz",
+          "resolved": "https://registry.npmjs.org/uuid/-/uuid-2.0.3.tgz",
           "integrity": "sha1-Z+LoY3lyFVMN/zGOW/nc6/1Hsho="
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@@ -10492,7 +10551,7 @@
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-      "resolved": "http://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
       "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
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@@ -10911,7 +10970,7 @@
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-          "resolved": "http://registry.npmjs.org/yargs/-/yargs-3.10.0.tgz",
+          "resolved": "https://registry.npmjs.org/yargs/-/yargs-3.10.0.tgz",
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             "pify": {
               "version": "2.3.0",
-              "resolved": "http://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
+              "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
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@@ -11514,7 +11573,7 @@
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-          "resolved": "http://registry.npmjs.org/yargs/-/yargs-6.6.0.tgz",
+          "resolved": "https://registry.npmjs.org/yargs/-/yargs-6.6.0.tgz",
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           "requires": {
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@@ -11534,7 +11593,7 @@
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           "version": "4.2.1",
-          "resolved": "http://registry.npmjs.org/yargs-parser/-/yargs-parser-4.2.1.tgz",
+          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-4.2.1.tgz",
           "integrity": "sha1-KczqwNxPA8bIe0qfIX3RjJ90hxw=",
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@@ -11553,7 +11612,7 @@
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           "version": "0.30.0",
-          "resolved": "http://registry.npmjs.org/fs-extra/-/fs-extra-0.30.0.tgz",
+          "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-0.30.0.tgz",
           "integrity": "sha1-8jP/zAjU2n1DLapEl3aYnbHfk/A=",
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-          "resolved": "http://registry.npmjs.org/jsonfile/-/jsonfile-2.4.0.tgz",
+          "resolved": "https://registry.npmjs.org/jsonfile/-/jsonfile-2.4.0.tgz",
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           "requires": {
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@@ -11599,9 +11658,9 @@
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+      "version": "0.1.4",
+      "resolved": "https://registry.npmjs.org/websocket-extensions/-/websocket-extensions-0.1.4.tgz",
+      "integrity": "sha512-OqedPIGOfsDlo31UNwYbCFMSaO9m9G/0faIHj5/dZFDMFqPTcx6UwqyOy3COEaEOg/9VsGIpdqn62W5KhoKSpg=="
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diff --git a/04-react-state-part-1/instructor/react-film/yarn.lock b/04-react-state-part-1/instructor/react-film/yarn.lock
index 00c634b..56937d7 100644
--- a/04-react-state-part-1/instructor/react-film/yarn.lock
+++ b/04-react-state-part-1/instructor/react-film/yarn.lock
@@ -3744,6 +3744,10 @@ js-tokens@^3.0.0, js-tokens@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.2.tgz#9866df395102130e38f7f996bceb65443209c25b"
 
+"js-tokens@^3.0.0 || ^4.0.0":
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
+
 js-yaml@^3.4.3, js-yaml@^3.7.0, js-yaml@^3.9.1:
   version "3.10.0"
   resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.10.0.tgz#2e78441646bd4682e963f22b6e92823c309c62dc"
@@ -4015,6 +4019,12 @@ loose-envify@^1.0.0, loose-envify@^1.1.0, loose-envify@^1.3.1:
   dependencies:
     js-tokens "^3.0.0"
 
+loose-envify@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/loose-envify/-/loose-envify-1.4.0.tgz#71ee51fa7be4caec1a63839f7e682d8132d30caf"
+  dependencies:
+    js-tokens "^3.0.0 || ^4.0.0"
+
 loud-rejection@^1.0.0:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/loud-rejection/-/loud-rejection-1.6.0.tgz#5b46f80147edee578870f086d04821cf998e551f"
@@ -5029,6 +5039,14 @@ prop-types@^15.6.0:
     loose-envify "^1.3.1"
     object-assign "^4.1.1"
 
+prop-types@^15.6.2:
+  version "15.7.2"
+  resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.7.2.tgz#52c41e75b8c87e72b9d9360e0206b99dcbffa6c5"
+  dependencies:
+    loose-envify "^1.4.0"
+    object-assign "^4.1.1"
+    react-is "^16.8.1"
+
 proxy-addr@~2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/proxy-addr/-/proxy-addr-2.0.2.tgz#6571504f47bb988ec8180253f85dd7e14952bdec"
@@ -5155,7 +5173,7 @@ react-dev-utils@^4.1.0:
     strip-ansi "3.0.1"
     text-table "0.2.0"
 
-react-dom@16.0.0, "react-dom@^15 || ^16":
+"react-dom@^15 || ^16":
   version "16.0.0"
   resolved "https://registry.yarnpkg.com/react-dom/-/react-dom-16.0.0.tgz#9cc3079c3dcd70d4c6e01b84aab2a7e34c303f58"
   dependencies:
@@ -5164,6 +5182,15 @@ react-dom@16.0.0, "react-dom@^15 || ^16":
     object-assign "^4.1.1"
     prop-types "^15.6.0"
 
+react-dom@^16.0.0:
+  version "16.13.1"
+  resolved "https://registry.yarnpkg.com/react-dom/-/react-dom-16.13.1.tgz#c1bd37331a0486c078ee54c4740720993b2e0e7f"
+  dependencies:
+    loose-envify "^1.1.0"
+    object-assign "^4.1.1"
+    prop-types "^15.6.2"
+    scheduler "^0.19.1"
+
 react-error-overlay@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/react-error-overlay/-/react-error-overlay-2.0.2.tgz#967b091962b17f5aeb4a60b1311b1736e1b6533d"
@@ -5177,6 +5204,10 @@ react-error-overlay@^2.0.2:
     settle-promise "1.0.0"
     source-map "0.5.6"
 
+react-is@^16.8.1:
+  version "16.13.1"
+  resolved "https://registry.yarnpkg.com/react-is/-/react-is-16.13.1.tgz#789729a4dc36de2999dc156dd6c1d9c18cea56a4"
+
 react-scripts@1.0.14:
   version "1.0.14"
   resolved "https://registry.yarnpkg.com/react-scripts/-/react-scripts-1.0.14.tgz#70fe76c9beb67b136b953e875bdfe4ad78d410d1"
@@ -5219,7 +5250,7 @@ react-scripts@1.0.14:
   optionalDependencies:
     fsevents "1.1.2"
 
-react@16.0.0, "react@^15 || ^16":
+"react@^15 || ^16":
   version "16.0.0"
   resolved "https://registry.yarnpkg.com/react/-/react-16.0.0.tgz#ce7df8f1941b036f02b2cca9dbd0cb1f0e855e2d"
   dependencies:
@@ -5228,6 +5259,14 @@ react@16.0.0, "react@^15 || ^16":
     object-assign "^4.1.1"
     prop-types "^15.6.0"
 
+react@^16.0.0:
+  version "16.13.1"
+  resolved "https://registry.yarnpkg.com/react/-/react-16.13.1.tgz#2e818822f1a9743122c063d6410d85c1e3afe48e"
+  dependencies:
+    loose-envify "^1.1.0"
+    object-assign "^4.1.1"
+    prop-types "^15.6.2"
+
 read-all-stream@^3.0.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/read-all-stream/-/read-all-stream-3.1.0.tgz#35c3e177f2078ef789ee4bfafa4373074eaef4fa"
@@ -5583,6 +5622,13 @@ sax@^1.2.1, sax@~1.2.1:
   version "1.2.4"
   resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
 
+scheduler@^0.19.1:
+  version "0.19.1"
+  resolved "https://registry.yarnpkg.com/scheduler/-/scheduler-0.19.1.tgz#4f3e2ed2c1a7d65681f4c854fa8c5a1ccb40f196"
+  dependencies:
+    loose-envify "^1.1.0"
+    object-assign "^4.1.1"
+
 schema-utils@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-0.3.0.tgz#f5877222ce3e931edae039f17eb3716e7137f8cf"
@@ -6459,8 +6505,8 @@ websocket-driver@>=0.5.1:
     websocket-extensions ">=0.1.1"
 
 websocket-extensions@>=0.1.1:
-  version "0.1.2"
-  resolved "https://registry.yarnpkg.com/websocket-extensions/-/websocket-extensions-0.1.2.tgz#0e18781de629a18308ce1481650f67ffa2693a5d"
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/websocket-extensions/-/websocket-extensions-0.1.4.tgz#7f8473bc839dfd87608adb95d7eb075211578a42"
 
 whatwg-encoding@^1.0.1:
   version "1.0.1"