diff --git a/package.json b/package.json
index db353ef6..18c5614c 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
   },
   "description": "Flowtype linting rules for ESLint.",
   "devDependencies": {
-    "ajv": "^6.10.2",
+    "ajv": "^6.12.2",
     "babel-cli": "^6.26.0",
     "babel-eslint": "^10.1.0",
     "babel-plugin-add-module-exports": "^1.0.2",
@@ -20,13 +20,13 @@
     "eclint": "^2.8.1",
     "eslint": "^7.0.0",
     "eslint-config-canonical": "^19.0.4",
-    "gitdown": "^3.1.1",
-    "glob": "^7.1.4",
-    "husky": "^3.0.3",
+    "gitdown": "^3.1.3",
+    "glob": "^7.1.6",
+    "husky": "^4.2.5",
     "jsonlint": "^1.6.3",
-    "mocha": "^6.2.0",
-    "rimraf": "^3.0.0",
-    "semantic-release": "^15.13.19"
+    "mocha": "^7.1.2",
+    "rimraf": "^3.0.2",
+    "semantic-release": "^17.0.7"
   },
   "engines": {
     "node": "^10.12.0 || >=12.0.0"
diff --git a/src/bin/checkDocs.js b/src/bin/checkDocs.js
index 933edb91..125b2b2f 100644
--- a/src/bin/checkDocs.js
+++ b/src/bin/checkDocs.js
@@ -90,7 +90,7 @@ const checkDocs = (rulesNames) => {
     throw new Error(
       'Docs checker encountered an error in: ' + invalidList + '. ' +
       'Make sure that for every rule you created documentation file with assertions placeholder in camelCase ' +
-      'and included the file path in `.README/README.md` file.'
+      'and included the file path in `.README/README.md` file.',
     );
   }
 };
diff --git a/src/bin/checkTests.js b/src/bin/checkTests.js
index 8acef78c..580d8ece 100644
--- a/src/bin/checkTests.js
+++ b/src/bin/checkTests.js
@@ -58,7 +58,7 @@ const checkTests = (rulesNames) => {
 
     throw new Error(
       'Tests checker encountered an error in: ' + invalidList + '. ' +
-      'Make sure that for every rule you created test suite and included the rule name in `tests/rules/index.js` file.'
+      'Make sure that for every rule you created test suite and included the rule name in `tests/rules/index.js` file.',
     );
   }
 };
diff --git a/src/rules/defineFlowType.js b/src/rules/defineFlowType.js
index 1e065bfd..b172ec69 100644
--- a/src/rules/defineFlowType.js
+++ b/src/rules/defineFlowType.js
@@ -18,7 +18,7 @@ const create = (context) => {
         globalScope.__defineGeneric(
           ident.name,
           globalScope.set,
-          globalScope.variables
+          globalScope.variables,
         );
         const variable = globalScope.set.get(ident.name);
 
diff --git a/src/rules/newlineAfterFlowAnnotation.js b/src/rules/newlineAfterFlowAnnotation.js
index c188e205..3145db49 100644
--- a/src/rules/newlineAfterFlowAnnotation.js
+++ b/src/rules/newlineAfterFlowAnnotation.js
@@ -25,7 +25,7 @@ const create = (context) => {
         context.getAllComments(),
         (comment) => {
           return looksLikeFlowFileAnnotation(comment.value);
-        }
+        },
       );
 
       if (potentialFlowFileAnnotation) {
@@ -37,7 +37,7 @@ const create = (context) => {
             fix: (fixer) => {
               return fixer.insertTextAfter(
                 potentialFlowFileAnnotation,
-                newline
+                newline,
               );
             },
             message: 'Expected newline after flow annotation',
@@ -57,7 +57,7 @@ const create = (context) => {
                     lineBreak === '\r' ? 2 : 1
                   ),
                 ],
-                ''
+                '',
               );
             },
             message: 'Expected no newline after flow annotation',
diff --git a/src/rules/noDupeKeys.js b/src/rules/noDupeKeys.js
index 6fe87dc1..8a5f569c 100644
--- a/src/rules/noDupeKeys.js
+++ b/src/rules/noDupeKeys.js
@@ -52,7 +52,7 @@ const create = (context) => {
       const element = analizeElement(
         property.type === 'ObjectTypeSpreadProperty' ?
           property.argument :
-          property.value
+          property.value,
       );
 
       return {
diff --git a/src/rules/requireValidFileAnnotation.js b/src/rules/requireValidFileAnnotation.js
index 4c5430c4..b56eeb59 100644
--- a/src/rules/requireValidFileAnnotation.js
+++ b/src/rules/requireValidFileAnnotation.js
@@ -100,7 +100,7 @@ const create = (context) => {
               fix: (fixer) => {
                 return fixer.replaceTextRange(
                   [potentialFlowFileAnnotation.range[0], potentialFlowFileAnnotation.range[1]],
-                  annotation
+                  annotation,
                 );
               },
               message: 'Flow file annotation style must be `' + annotation + '`',
diff --git a/src/rules/sortKeys.js b/src/rules/sortKeys.js
index c967ebce..ad15a2e8 100644
--- a/src/rules/sortKeys.js
+++ b/src/rules/sortKeys.js
@@ -186,7 +186,7 @@ const generateFix = (node, context, sort) => {
       property.range[0];
     const subString = source.getText().slice(
       startIndex,
-      beforePunctuator.range[1]
+      beforePunctuator.range[1],
     );
 
     nodeText = nodeText.replace(subString, '$' + index);
diff --git a/src/utilities/isFlowFile.js b/src/utilities/isFlowFile.js
index e0ee9ee4..2816630c 100644
--- a/src/utilities/isFlowFile.js
+++ b/src/utilities/isFlowFile.js
@@ -1,5 +1,5 @@
 import isFlowFileAnnotation from './isFlowFileAnnotation';
-/* eslint-disable flowtype/require-valid-file-annotation */
+
 /**
  * Checks whether a file has an @flow or @noflow annotation.
  *
@@ -7,7 +7,7 @@ import isFlowFileAnnotation from './isFlowFileAnnotation';
  * @param [strict] - By default, the function returns true if the file starts with @flow but not if it
  * starts by @noflow. When the strict flag is set to false, the function returns true if the flag has @noflow also.
  */
-/* eslint-enable flowtype/require-valid-file-annotation */
+
 export default (context, strict = true) => {
   const comments = context.getAllComments();
 
diff --git a/src/utilities/isFlowFileAnnotation.js b/src/utilities/isFlowFileAnnotation.js
index 0f111168..b9fa5810 100644
--- a/src/utilities/isFlowFileAnnotation.js
+++ b/src/utilities/isFlowFileAnnotation.js
@@ -3,7 +3,6 @@ import _ from 'lodash';
 const FLOW_MATCHER = /^@(?:no)?flow$/;
 
 export default (comment, strict) => {
-  // eslint-disable-next-line flowtype/require-valid-file-annotation
   // The flow parser splits comments with the following regex to look for the @flow flag.
   // See https://github.com/facebook/flow/blob/a96249b93541f2f7bfebd8d62085bf7a75de02f2/src/parsing/docblock.ml#L39
   return _.some(comment.split(/[ \t\r\n\\*/]+/), (commentPart) => {