diff --git a/.github/ISSUE_TEMPLATE.md b/.github/ISSUE_TEMPLATE.md
index 7e9aa5237..7adedeab7 100644
--- a/.github/ISSUE_TEMPLATE.md
+++ b/.github/ISSUE_TEMPLATE.md
@@ -1,5 +1,4 @@
 ---
-
 name: Bug report
 about: Create a report to help us improve
 title: ''
diff --git a/project-fixtures/gql-errors-prj/graphql-tag.d.ts b/project-fixtures/gql-errors-prj/graphql-tag.d.ts
index 9725dde88..02ca46cde 100644
--- a/project-fixtures/gql-errors-prj/graphql-tag.d.ts
+++ b/project-fixtures/gql-errors-prj/graphql-tag.d.ts
@@ -1,4 +1,4 @@
-declare module "graphql-tag" {
+declare module 'graphql-tag' {
   const gql: any;
   export default gql;
 }
diff --git a/project-fixtures/gql-errors-prj/main.ts b/project-fixtures/gql-errors-prj/main.ts
index a4be8414e..0b620bf8e 100644
--- a/project-fixtures/gql-errors-prj/main.ts
+++ b/project-fixtures/gql-errors-prj/main.ts
@@ -12,9 +12,9 @@ const tooComplexExpressionQuery = gql`
   query {
     ${getField()}
   }
-`
+`;
 const semanticErrorFragment = gql`
-  fragment MyFragment  on Query {
+  fragment MyFragment on Query {
     hoge
   }
 `;
diff --git a/project-fixtures/no-config-prj/graphql-tag.d.ts b/project-fixtures/no-config-prj/graphql-tag.d.ts
index 9725dde88..02ca46cde 100644
--- a/project-fixtures/no-config-prj/graphql-tag.d.ts
+++ b/project-fixtures/no-config-prj/graphql-tag.d.ts
@@ -1,4 +1,4 @@
-declare module "graphql-tag" {
+declare module 'graphql-tag' {
   const gql: any;
   export default gql;
 }
diff --git a/project-fixtures/react-apollo-prj/schema.graphql b/project-fixtures/react-apollo-prj/schema.graphql
index ee8d8737b..8532e5b02 100644
--- a/project-fixtures/react-apollo-prj/schema.graphql
+++ b/project-fixtures/react-apollo-prj/schema.graphql
@@ -10180,7 +10180,7 @@ type IssueTimelineConnection {
 An item in an issue timeline
 """
 union IssueTimelineItem =
-    AssignedEvent
+  | AssignedEvent
   | ClosedEvent
   | Commit
   | CrossReferencedEvent
@@ -10219,7 +10219,7 @@ type IssueTimelineItemEdge {
 An item in an issue timeline
 """
 union IssueTimelineItems =
-    AddedToProjectEvent
+  | AddedToProjectEvent
   | AssignedEvent
   | ClosedEvent
   | CommentDeletedEvent
@@ -15572,7 +15572,7 @@ type OrgRestoreMemberAuditEntry implements AuditEntry & Node & OrganizationAudit
 Types of memberships that can be restored for an Organization member.
 """
 union OrgRestoreMemberAuditEntryMembership =
-    OrgRestoreMemberMembershipOrganizationAuditEntryData
+  | OrgRestoreMemberMembershipOrganizationAuditEntryData
   | OrgRestoreMemberMembershipRepositoryAuditEntryData
   | OrgRestoreMemberMembershipTeamAuditEntryData
 
@@ -16987,7 +16987,7 @@ type Organization implements Actor & MemberStatusable & Node & ProfileOwner & Pr
 An audit entry in an organization audit log.
 """
 union OrganizationAuditEntry =
-    MembersCanDeleteReposClearAuditEntry
+  | MembersCanDeleteReposClearAuditEntry
   | MembersCanDeleteReposDisableAuditEntry
   | MembersCanDeleteReposEnableAuditEntry
   | OauthApplicationCreateAuditEntry
@@ -20762,7 +20762,7 @@ type PullRequestTimelineConnection {
 An item in an pull request timeline
 """
 union PullRequestTimelineItem =
-    AssignedEvent
+  | AssignedEvent
   | BaseRefForcePushedEvent
   | ClosedEvent
   | Commit
@@ -20814,7 +20814,7 @@ type PullRequestTimelineItemEdge {
 An item in a pull request timeline
 """
 union PullRequestTimelineItems =
-    AddedToProjectEvent
+  | AddedToProjectEvent
   | AssignedEvent
   | BaseRefChangedEvent
   | BaseRefForcePushedEvent
diff --git a/project-fixtures/react-apollo-prj/src/index.tsx b/project-fixtures/react-apollo-prj/src/index.tsx
index 9a2879b08..4a0fc2ae4 100644
--- a/project-fixtures/react-apollo-prj/src/index.tsx
+++ b/project-fixtures/react-apollo-prj/src/index.tsx
@@ -24,7 +24,7 @@ const query = gql`
 
 const mutation = gql`
   mutation UpdateMyRepository($repositoryId: ID!) {
-    updateRepository(input: { repositoryId: $repositoryId } ) {
+    updateRepository(input: { repositoryId: $repositoryId }) {
       clientMutationId
     }
   }
diff --git a/project-fixtures/simple-prj/addon.js b/project-fixtures/simple-prj/addon.js
index 12aecf0be..0b678a161 100644
--- a/project-fixtures/simple-prj/addon.js
+++ b/project-fixtures/simple-prj/addon.js
@@ -1,4 +1,4 @@
-module.exports = (ctx) => {
+module.exports = ctx => {
   return {
     document: () => {
       ctx.source.writeLeadingComment('Hello, Addon!');
diff --git a/project-fixtures/simple-prj/graphql-tag.d.ts b/project-fixtures/simple-prj/graphql-tag.d.ts
index 9725dde88..02ca46cde 100644
--- a/project-fixtures/simple-prj/graphql-tag.d.ts
+++ b/project-fixtures/simple-prj/graphql-tag.d.ts
@@ -1,4 +1,4 @@
-declare module "graphql-tag" {
+declare module 'graphql-tag' {
   const gql: any;
   export default gql;
 }
diff --git a/project-fixtures/transformation-prj/tag.ts b/project-fixtures/transformation-prj/tag.ts
index 8406ab2b7..8317cd610 100644
--- a/project-fixtures/transformation-prj/tag.ts
+++ b/project-fixtures/transformation-prj/tag.ts
@@ -1,4 +1,4 @@
 export default function gql(literals: TemplateStringsArray, ...args: unknown[]) {
   // dummy impl
-  return ""
+  return '';
 }
diff --git a/project-fixtures/transformation-prj/webpack.config.js b/project-fixtures/transformation-prj/webpack.config.js
index 311e8ea3c..454bdefe5 100644
--- a/project-fixtures/transformation-prj/webpack.config.js
+++ b/project-fixtures/transformation-prj/webpack.config.js
@@ -9,11 +9,11 @@ module.exports = {
     extensions: ['.ts', '.js'],
   },
   entry: {
-    main: path.resolve(__dirname, "query.ts"),
+    main: path.resolve(__dirname, 'query.ts'),
   },
   output: {
-    path: path.resolve(__dirname, "dist"),
-    filename: "[name].js",
+    path: path.resolve(__dirname, 'dist'),
+    filename: '[name].js',
   },
   module: {
     rules: [
@@ -24,16 +24,12 @@ module.exports = {
         options: {
           transpileOnly: true,
           getCustomTransformers: () => ({
-            before: [
-              tsgqlPlugin.getTransformer(),
-            ],
+            before: [tsgqlPlugin.getTransformer()],
           }),
         },
-      }
+      },
     ],
   },
-  plugins: [
-    tsgqlPlugin,
-  ],
+  plugins: [tsgqlPlugin],
   devtool: false,
 };
diff --git a/project-fixtures/typegen-addon-prj/graphql-tag.d.ts b/project-fixtures/typegen-addon-prj/graphql-tag.d.ts
index 806b65c49..9055ef089 100644
--- a/project-fixtures/typegen-addon-prj/graphql-tag.d.ts
+++ b/project-fixtures/typegen-addon-prj/graphql-tag.d.ts
@@ -1,4 +1,4 @@
 declare module 'graphql-tag' {
-  function gql (...args: any[]): any;
+  function gql(...args: any[]): any;
   export default gql;
 }