diff --git a/.eslintrc.json b/.eslintrc.json
index 987032c5..1805d0c8 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -86,6 +86,10 @@
         "assertionStyle": "never"
       }
     ],
+    "@typescript-eslint/consistent-type-definitions": [
+      "error",
+      "interface"
+    ],
     "@typescript-eslint/no-shadow": [
       "error"
     ],
diff --git a/.projenrc.ts b/.projenrc.ts
index 2db6c455..32e10e55 100644
--- a/.projenrc.ts
+++ b/.projenrc.ts
@@ -1,3 +1,4 @@
+import type {Linter} from 'eslint'
 import {readFileSync} from 'fs'
 import * as projen from 'projen'
 import {addHusky} from './src/common/git'
@@ -64,10 +65,15 @@ project.package.addField('version', version)
 project.package.addField('overrides', {'@types/babel__traverse': 'ts3.9'})
 
 // ANCHOR ESLint and prettier setup
+const rules: Linter.RulesRecord = {
+  'import/no-relative-parent-imports': ['off'], // Relative paths are required at runtime
+  '@typescript-eslint/consistent-type-definitions': ['error', 'interface'], // JSII requires interfaces to be exported
+}
+
 addLinters({
   project,
   lintPaths: ['.projenrc.ts', 'src'],
-  extraEslintConfigs: [{rules: {'import/no-relative-parent-imports': ['off']}}],
+  extraEslintConfigs: [{rules}],
 })
 
 // Solves the typescript > 4 problem
diff --git a/src/apollo-server/__tests__/__snapshots__/index.ts.snap b/src/apollo-server/__tests__/__snapshots__/index.ts.snap
index c5aa55a7..2cfd5112 100644
--- a/src/apollo-server/__tests__/__snapshots__/index.ts.snap
+++ b/src/apollo-server/__tests__/__snapshots__/index.ts.snap
@@ -155,6 +155,10 @@ ACCESS_TOKEN=5aff40b2312321laksdkncKSDA
           "assertionStyle": "never",
         },
       ],
+      "@typescript-eslint/consistent-type-definitions": [
+        "error",
+        "type",
+      ],
       "@typescript-eslint/no-shadow": [
         "error",
       ],
diff --git a/src/cdk/__tests__/__snapshots__/index.ts.snap b/src/cdk/__tests__/__snapshots__/index.ts.snap
index 539ccc82..f7c5301b 100644
--- a/src/cdk/__tests__/__snapshots__/index.ts.snap
+++ b/src/cdk/__tests__/__snapshots__/index.ts.snap
@@ -139,6 +139,10 @@ exports[`CDK template sets defaults 1`] = `
           "assertionStyle": "never",
         },
       ],
+      "@typescript-eslint/consistent-type-definitions": [
+        "error",
+        "type",
+      ],
       "@typescript-eslint/no-shadow": [
         "error",
       ],
diff --git a/src/common/lint/add-linters.ts b/src/common/lint/add-linters.ts
index ab041ae0..f75cb38a 100644
--- a/src/common/lint/add-linters.ts
+++ b/src/common/lint/add-linters.ts
@@ -10,7 +10,7 @@ import {prettierConfig} from './configs/prettier'
 const arrayEslintConfigProperties = ['extends', 'overrides', 'plugins'] as const
 type LinterConfigArrayProperties = Pick<Linter.Config, (typeof arrayEslintConfigProperties)[number]>
 
-type AddLintersProps = {
+interface AddLintersProps {
   readonly project: NodeProject
   readonly lintPaths: Array<string>
   readonly extraEslintConfigs?: Array<Linter.Config>
diff --git a/src/common/lint/configs/cspell.ts b/src/common/lint/configs/cspell.ts
index e84e61c6..6f9892c7 100644
--- a/src/common/lint/configs/cspell.ts
+++ b/src/common/lint/configs/cspell.ts
@@ -1,9 +1,9 @@
-type DictionaryDefinition = {
+interface DictionaryDefinition {
   name: string
   path: string
 }
 
-type LanguageSettings = {
+interface LanguageSettings {
   /**
    * VSCode languageId. i.e. typescript, java, go, cpp, javascript, markdown, latex
    * will match against any file type.
@@ -30,7 +30,7 @@ type LanguageSettings = {
 }
 
 /** @see https://cspell.org/configuration/#cspelljson-sections */
-type CSpellConfig = {
+interface CSpellConfig {
   /** Currently always 0.2 - controls how the settings in the configuration file behave. */
   version: string
 
diff --git a/src/common/lint/configs/eslint-config-quality.ts b/src/common/lint/configs/eslint-config-quality.ts
index 547628a3..464112d9 100644
--- a/src/common/lint/configs/eslint-config-quality.ts
+++ b/src/common/lint/configs/eslint-config-quality.ts
@@ -33,6 +33,7 @@ export const eslintConfigQuality: Linter.Config = {
       {'ts-expect-error': 'allow-with-description', 'ts-ignore': 'allow-with-description'},
     ],
     '@typescript-eslint/consistent-type-assertions': ['error', {assertionStyle: 'never'}],
+    '@typescript-eslint/consistent-type-definitions': ['error', 'type'],
     '@typescript-eslint/no-shadow': ['error'],
     '@typescript-eslint/no-unused-expressions': ['error'],
     '@typescript-eslint/no-unused-vars': ['error', {argsIgnorePattern: '^_'}],
diff --git a/src/nextjs/__tests__/__snapshots__/index.ts.snap b/src/nextjs/__tests__/__snapshots__/index.ts.snap
index b3b3c71c..488c70f6 100644
--- a/src/nextjs/__tests__/__snapshots__/index.ts.snap
+++ b/src/nextjs/__tests__/__snapshots__/index.ts.snap
@@ -149,6 +149,10 @@ node_modules
           "assertionStyle": "never",
         },
       ],
+      "@typescript-eslint/consistent-type-definitions": [
+        "error",
+        "type",
+      ],
       "@typescript-eslint/no-shadow": [
         "error",
       ],
diff --git a/src/sst/__tests__/__snapshots__/index.ts.snap b/src/sst/__tests__/__snapshots__/index.ts.snap
index 98f74450..4452d81e 100644
--- a/src/sst/__tests__/__snapshots__/index.ts.snap
+++ b/src/sst/__tests__/__snapshots__/index.ts.snap
@@ -139,6 +139,10 @@ exports[`SST template sets defaults 1`] = `
           "assertionStyle": "never",
         },
       ],
+      "@typescript-eslint/consistent-type-definitions": [
+        "error",
+        "type",
+      ],
       "@typescript-eslint/no-shadow": [
         "error",
       ],