diff --git a/typescript/formsApps.d.ts b/typescript/formsApps.d.ts
index a5d63bc5..ce40aab9 100644
--- a/typescript/formsApps.d.ts
+++ b/typescript/formsApps.d.ts
@@ -373,6 +373,16 @@ type _NewFormsApp = {
   }>
   /** Google analytics tag id */
   googleAnalyticsTagId?: string
+  /**
+   * OAuth2 authentication settings for the forms app.
+   *
+   * If `forceOAuthAuthentication` is `true`, all users will be required to
+   * authenticate via the OAuth2 provider specified in `integrationProviderId`.
+   */
+  oAuth2Authentication?: {
+    integrationProviderId: string
+    forceOAuthAuthentication?: boolean
+  }
 }
 
 export type NewVolunteersFormsApp = _NewFormsApp & {
diff --git a/typescript/integrations.d.ts b/typescript/integrations.d.ts
index 1658459f..fee0df16 100644
--- a/typescript/integrations.d.ts
+++ b/typescript/integrations.d.ts
@@ -18,6 +18,7 @@ export type IntegrationType =
   | 'NYLAS'
   | 'SHAREPOINT'
   | 'CIVIC_REC'
+  | 'OAUTH_2'
 
 type IntegrationBase = {
   organisationId: string
@@ -302,6 +303,22 @@ export type IntegrationCivicRec<S = SavedSecret> = IntegrationBase & {
   }
 }
 
+export type IntegrationOAuth2Provider<S = SavedSecret> = {
+  id: string
+  label: string
+  clientId: string
+  clientSecret: ConstrainedSecret<S>
+  attributeRequestMethod: 'GET' | 'POST'
+  issuerURL: string
+}
+
+export type IntegrationOAuth2<S = SavedSecret> = IntegrationBase & {
+  type: 'OAUTH_2'
+  configuration: {
+    providers: IntegrationOAuth2Provider<S>[]
+  }
+}
+
 export type DeleteIntegrationValidationResults = {
   forms: Array<{
     formId: number
@@ -338,3 +355,4 @@ export type Integration<S = SavedSecret> =
   | IntegrationNylas
   | IntegrationSharepoint<S>
   | IntegrationCivicRec<S>
+  | IntegrationOAuth2<S>