diff --git a/types/pollyjs__adapter-fetch/index.d.ts b/types/pollyjs__adapter-fetch/index.d.ts
index d38313db9d..30fe9f1cab 100644
--- a/types/pollyjs__adapter-fetch/index.d.ts
+++ b/types/pollyjs__adapter-fetch/index.d.ts
@@ -1,4 +1,4 @@
-// Type definitions for @pollyjs/adapter-fetch 1.3
+// Type definitions for @pollyjs/adapter-fetch 2.0
 // Project: https://github.com/netflix/pollyjs/tree/master/packages/@pollyjs/adapter-fetch
 // Definitions by: feinoujc <https://github.com/feinoujc>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
diff --git a/types/pollyjs__adapter-node-http/index.d.ts b/types/pollyjs__adapter-node-http/index.d.ts
index 1ffab20c7e..55a096c242 100644
--- a/types/pollyjs__adapter-node-http/index.d.ts
+++ b/types/pollyjs__adapter-node-http/index.d.ts
@@ -1,4 +1,4 @@
-// Type definitions for @pollyjs/adapter-node-http 1.4
+// Type definitions for @pollyjs/adapter-node-http 2.0
 // Project: https://github.com/netflix/pollyjs/tree/master/packages/@pollyjs/adapter-node-http
 // Definitions by: jlmessenger <https://github.com/jlmessenger>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
diff --git a/types/pollyjs__adapter/index.d.ts b/types/pollyjs__adapter/index.d.ts
index 0bc49fd73b..8060595a6f 100644
--- a/types/pollyjs__adapter/index.d.ts
+++ b/types/pollyjs__adapter/index.d.ts
@@ -1,4 +1,4 @@
-// Type definitions for @pollyjs/adapter 1.3
+// Type definitions for @pollyjs/adapter 2.0
 // Project: https://github.com/netflix/pollyjs/tree/master/packages/@pollyjs/adapter
 // Definitions by: feinoujc <https://github.com/feinoujc>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
diff --git a/types/pollyjs__core/index.d.ts b/types/pollyjs__core/index.d.ts
index 4f6d308d0d..8ffe642497 100644
--- a/types/pollyjs__core/index.d.ts
+++ b/types/pollyjs__core/index.d.ts
@@ -1,4 +1,4 @@
-// Type definitions for @pollyjs/core 1.3
+// Type definitions for @pollyjs/core 2.0
 // Project: https://github.com/netflix/pollyjs/tree/master/packages/@pollyjs/core
 // Definitions by: feinoujc <https://github.com/feinoujc>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
@@ -70,7 +70,7 @@ export interface Request {
 	port: string;
 	pathname: string;
 	hash: string;
-	headers: Record<string, string>;
+	headers: Record<string, string | string[]>;
 	body: any;
 	query: any;
 	params: any;
@@ -79,7 +79,7 @@ export interface Request {
 }
 export interface Response {
 	statusCode?: number;
-	headers: Record<string, string>;
+	headers: Record<string, string | string[]>;
 	body: any;
 	status(status: number): Response;
 	getHeader(name: string): string | null;
diff --git a/types/pollyjs__persister-fs/index.d.ts b/types/pollyjs__persister-fs/index.d.ts
index fc7f9ad656..40c3d4a3a4 100644
--- a/types/pollyjs__persister-fs/index.d.ts
+++ b/types/pollyjs__persister-fs/index.d.ts
@@ -1,4 +1,4 @@
-// Type definitions for @pollyjs/persister-fs 1.3
+// Type definitions for @pollyjs/persister-fs 2.0
 // Project: https://github.com/netflix/pollyjs/tree/master/packages/@pollyjs/persister-fs
 // Definitions by: feinoujc <https://github.com/feinoujc>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
diff --git a/types/pollyjs__persister/index.d.ts b/types/pollyjs__persister/index.d.ts
index 87e1c27f5b..b46d10ed83 100644
--- a/types/pollyjs__persister/index.d.ts
+++ b/types/pollyjs__persister/index.d.ts
@@ -1,4 +1,4 @@
-// Type definitions for @pollyjs/persister 1.3
+// Type definitions for @pollyjs/persister 2.0
 // Project: https://github.com/netflix/pollyjs/tree/master/packages/@pollyjs/persister
 // Definitions by: feinoujc <https://github.com/feinoujc>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
diff --git a/types/pollyjs__utils/index.d.ts b/types/pollyjs__utils/index.d.ts
index ca3e7735ef..bf5d4d0c68 100644
--- a/types/pollyjs__utils/index.d.ts
+++ b/types/pollyjs__utils/index.d.ts
@@ -1,4 +1,4 @@
-// Type definitions for @pollyjs/utils 1.3
+// Type definitions for @pollyjs/utils 2.0
 // Project: https://github.com/netflix/pollyjs/tree/master/packages/@pollyjs/utils
 // Definitions by: feinoujc <https://github.com/feinoujc>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped