diff --git a/secao4 - modulo 2/context-api/package-lock.json b/secao4 - modulo 2/context-api/package-lock.json
index 199fc75..f29a7cd 100644
--- a/secao4 - modulo 2/context-api/package-lock.json	
+++ b/secao4 - modulo 2/context-api/package-lock.json	
@@ -262,6 +262,12 @@
         "acorn": "3.3.0"
       }
     },
+    "acorn-walk": {
+      "version": "6.2.0",
+      "resolved": "https://registry.npmjs.org/acorn-walk/-/acorn-walk-6.2.0.tgz",
+      "integrity": "sha512-7evsyfH1cLOCdAzZAd43Cic04yKydNx0cF+7tiA19p1XnLLPU4dpCQOqpjqwokFe//vS0QqfqqjCS2JkiIs0cA==",
+      "dev": true
+    },
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       "resolved": "https://registry.npmjs.org/after/-/after-0.8.2.tgz",
@@ -2031,15 +2037,16 @@
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-      "resolved": "https://registry.npmjs.org/bfj-node4/-/bfj-node4-5.3.1.tgz",
-      "integrity": "sha512-SOmOsowQWfXc7ybFARsK3C4MCOWzERaOMV/Fl3Tgjs+5dJWyzo3oa127jL44eMbQiAN17J7SvAs2TRxEScTUmg==",
+    "bfj": {
+      "version": "6.1.2",
+      "resolved": "https://registry.npmjs.org/bfj/-/bfj-6.1.2.tgz",
+      "integrity": "sha512-BmBJa4Lip6BPRINSZ0BPEIfB1wUY/9rwbwvIHQA1KjX9om29B6id0wnWXq7m3bn5JrUVjeOTnVuhPT1FiHwPGw==",
       "dev": true,
       "requires": {
-        "bluebird": "3.7.1",
-        "check-types": "7.4.0",
-        "tryer": "1.0.1"
+        "bluebird": "^3.5.5",
+        "check-types": "^8.0.3",
+        "hoopy": "^0.1.4",
+        "tryer": "^1.0.1"
       }
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@@ -2489,9 +2496,9 @@
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-      "resolved": "https://registry.npmjs.org/check-types/-/check-types-7.4.0.tgz",
-      "integrity": "sha512-YbulWHdfP99UfZ73NcUDlNJhEIDgm9Doq9GhpyXbF+7Aegi3CVV7qqMCKTTqJxlvEvnQBp9IA+dxsGN6xK/nSg==",
+      "version": "8.0.3",
+      "resolved": "https://registry.npmjs.org/check-types/-/check-types-8.0.3.tgz",
+      "integrity": "sha512-YpeKZngUmG65rLudJ4taU7VLkOCTMhNl/u4ctNC56LQS/zJTyNH0Lrtwm1tfTsbLlwvlfsA2d1c8vCf/Kh2KwQ==",
       "dev": true
     },
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@@ -4521,10 +4528,10 @@
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       "dev": true,
       "requires": {
-        "async": "2.6.3",
-        "loader-utils": "1.2.3",
-        "schema-utils": "0.3.0",
-        "webpack-sources": "1.4.3"
+        "async": "^2.4.1",
+        "loader-utils": "^1.1.0",
+        "schema-utils": "^0.3.0",
+        "webpack-sources": "^1.0.1"
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@@ -4539,7 +4546,7 @@
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           "dev": true,
           "requires": {
-            "minimist": "1.2.0"
+            "minimist": "^1.2.0"
           }
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         "loader-utils": {
@@ -4548,9 +4555,9 @@
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           "dev": true,
           "requires": {
-            "big.js": "5.2.2",
-            "emojis-list": "2.1.0",
-            "json5": "1.0.1"
+            "big.js": "^5.2.2",
+            "emojis-list": "^2.0.0",
+            "json5": "^1.0.1"
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@@ -5258,7 +5265,8 @@
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           "version": "2.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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           "version": "1.2.0",
@@ -5279,12 +5287,14 @@
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           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
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             "concat-map": "0.0.1"
@@ -5299,17 +5309,20 @@
         "code-point-at": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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         "concat-map": {
           "version": "0.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -5426,7 +5439,8 @@
         "inherits": {
           "version": "2.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -5438,6 +5452,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "1.0.1"
           }
@@ -5452,6 +5467,7 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "1.1.11"
           }
@@ -5459,12 +5475,14 @@
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.3.5",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "5.1.2",
             "yallist": "3.0.3"
@@ -5483,6 +5501,7 @@
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -5563,7 +5582,8 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -5575,6 +5595,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "wrappy": "1.0.2"
           }
@@ -5660,7 +5681,8 @@
         "safe-buffer": {
           "version": "5.1.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -5696,6 +5718,7 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "code-point-at": "1.1.0",
             "is-fullwidth-code-point": "1.0.0",
@@ -5715,6 +5738,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "2.1.1"
           }
@@ -5758,12 +5782,14 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         }
       }
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@@ -6196,19 +6222,19 @@
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-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/gzip-size/-/gzip-size-4.1.0.tgz",
-      "integrity": "sha1-iuCWJX6r59acRb4rZ8RIEk/7UXw=",
+      "version": "5.1.1",
+      "resolved": "https://registry.npmjs.org/gzip-size/-/gzip-size-5.1.1.tgz",
+      "integrity": "sha512-FNHi6mmoHvs1mxZAds4PpdCS6QG8B4C1krxJsMutgxl5t3+GlRTzzI3NEkifXx2pVsOvJdOGSmIgDhQ55FwdPA==",
       "dev": true,
       "requires": {
-        "duplexer": "0.1.1",
-        "pify": "3.0.0"
+        "duplexer": "^0.1.1",
+        "pify": "^4.0.1"
       },
       "dependencies": {
         "pify": {
-          "version": "3.0.0",
-          "resolved": "https://registry.npmjs.org/pify/-/pify-3.0.0.tgz",
-          "integrity": "sha1-5aSs0sEB/fPZpNB/DbxNtJ3SgXY=",
+          "version": "4.0.1",
+          "resolved": "https://registry.npmjs.org/pify/-/pify-4.0.1.tgz",
+          "integrity": "sha512-uB80kBFb/tfd68bVleG9T5GGsGPjJrLAUpR5PZIrhBnIaRTQRjqdJSsIKkOP6OAIFbj7GOrcudc5pNjZ+geV2g==",
           "dev": true
         }
       }
@@ -6450,6 +6476,12 @@
         "parse-passwd": "1.0.0"
       }
     },
+    "hoopy": {
+      "version": "0.1.4",
+      "resolved": "https://registry.npmjs.org/hoopy/-/hoopy-0.1.4.tgz",
+      "integrity": "sha512-HRcs+2mr52W0K+x8RzcLzuPPmVIKMSv97RGHy0Ea9y/mpcaK+xTrjICA04KAHi4GRzxliNqNJEFYWHghy3rSfQ==",
+      "dev": true
+    },
     "hosted-git-info": {
       "version": "2.8.5",
       "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-2.8.5.tgz",
@@ -11711,7 +11743,7 @@
       "integrity": "sha1-9YdyIs4+kx7a4DnxfrNxbnE3+M8=",
       "dev": true,
       "requires": {
-        "ajv": "5.5.2"
+        "ajv": "^5.0.0"
       },
       "dependencies": {
         "ajv": {
@@ -11720,10 +11752,10 @@
           "integrity": "sha1-c7Xuyj+rZT49P5Qis0GtQiBdyWU=",
           "dev": true,
           "requires": {
-            "co": "4.6.0",
-            "fast-deep-equal": "1.1.0",
-            "fast-json-stable-stringify": "2.0.0",
-            "json-schema-traverse": "0.3.1"
+            "co": "^4.6.0",
+            "fast-deep-equal": "^1.0.0",
+            "fast-json-stable-stringify": "^2.0.0",
+            "json-schema-traverse": "^0.3.0"
           }
         },
         "fast-deep-equal": {
@@ -14504,29 +14536,30 @@
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     "webpack-bundle-analyzer": {
-      "version": "2.13.1",
-      "resolved": "https://registry.npmjs.org/webpack-bundle-analyzer/-/webpack-bundle-analyzer-2.13.1.tgz",
-      "integrity": "sha512-rwxyfecTAxoarCC9VlHlIpfQCmmJ/qWD5bpbjkof+7HrNhTNZIwZITxN6CdlYL2axGmwNUQ+tFgcSOiNXMf/sQ==",
+      "version": "3.3.2",
+      "resolved": "https://registry.npmjs.org/webpack-bundle-analyzer/-/webpack-bundle-analyzer-3.3.2.tgz",
+      "integrity": "sha512-7qvJLPKB4rRWZGjVp5U1KEjwutbDHSKboAl0IfafnrdXMrgC0tOtZbQD6Rw0u4cmpgRN4O02Fc0t8eAT+FgGzA==",
       "dev": true,
       "requires": {
-        "acorn": "5.7.3",
-        "bfj-node4": "5.3.1",
-        "chalk": "2.4.2",
-        "commander": "2.20.3",
-        "ejs": "2.7.1",
-        "express": "4.17.1",
-        "filesize": "3.6.1",
-        "gzip-size": "4.1.0",
-        "lodash": "4.17.15",
-        "mkdirp": "0.5.1",
-        "opener": "1.5.1",
-        "ws": "4.1.0"
+        "acorn": "^6.0.7",
+        "acorn-walk": "^6.1.1",
+        "bfj": "^6.1.1",
+        "chalk": "^2.4.1",
+        "commander": "^2.18.0",
+        "ejs": "^2.6.1",
+        "express": "^4.16.3",
+        "filesize": "^3.6.1",
+        "gzip-size": "^5.0.0",
+        "lodash": "^4.17.10",
+        "mkdirp": "^0.5.1",
+        "opener": "^1.5.1",
+        "ws": "^6.0.0"
       },
       "dependencies": {
         "acorn": {
-          "version": "5.7.3",
-          "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.3.tgz",
-          "integrity": "sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw==",
+          "version": "6.3.0",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.3.0.tgz",
+          "integrity": "sha512-/czfa8BwS88b9gWQVhc8eknunSA2DoJpJyTQkhheIf5E48u1N0R4q/YxxsAeqRrmK9TQ/uYfgLDfZo91UlANIA==",
           "dev": true
         },
         "ansi-styles": {
@@ -14535,7 +14568,7 @@
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           "dev": true,
           "requires": {
-            "color-convert": "1.9.3"
+            "color-convert": "^1.9.0"
           }
         },
         "chalk": {
@@ -14544,9 +14577,9 @@
           "integrity": "sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==",
           "dev": true,
           "requires": {
-            "ansi-styles": "3.2.1",
-            "escape-string-regexp": "1.0.5",
-            "supports-color": "5.5.0"
+            "ansi-styles": "^3.2.1",
+            "escape-string-regexp": "^1.0.5",
+            "supports-color": "^5.3.0"
           }
         },
         "has-flag": {
@@ -14561,7 +14594,7 @@
           "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
           "dev": true,
           "requires": {
-            "has-flag": "3.0.0"
+            "has-flag": "^3.0.0"
           }
         }
       }
@@ -15275,13 +15308,12 @@
       }
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     "ws": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-4.1.0.tgz",
-      "integrity": "sha512-ZGh/8kF9rrRNffkLFV4AzhvooEclrOH0xaugmqGsIfFgOE/pIz4fMc4Ef+5HSQqTEug2S9JZIWDR47duDSLfaA==",
+      "version": "6.2.1",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-6.2.1.tgz",
+      "integrity": "sha512-GIyAXC2cB7LjvpgMt9EKS2ldqr0MTrORaleiOno6TweZ6r3TKtoFQWay/2PceJ3RuBasOHzXNn5Lrw1X0bEjqA==",
       "dev": true,
       "requires": {
-        "async-limiter": "1.0.1",
-        "safe-buffer": "5.1.2"
+        "async-limiter": "~1.0.0"
       }
     },
     "wtf-8": {
diff --git a/secao4 - modulo 2/context-api/package.json b/secao4 - modulo 2/context-api/package.json
index 2383796..232bcfb 100644
--- a/secao4 - modulo 2/context-api/package.json	
+++ b/secao4 - modulo 2/context-api/package.json	
@@ -39,7 +39,7 @@
     "style-loader": "^0.13.1",
     "url-loader": "^0.5.8",
     "webpack": "^2.2.1",
-    "webpack-bundle-analyzer": "^2.3.1",
+    "webpack-bundle-analyzer": "^3.3.2",
     "webpack-dashboard": "^0.3.0",
     "webpack-dev-server": "^2.3.0"
   },