diff --git a/packages/third-parties/src/types/google.ts b/packages/third-parties/src/types/google.ts
index 30a4e9f28a464..aaae926d2a5c6 100644
--- a/packages/third-parties/src/types/google.ts
+++ b/packages/third-parties/src/types/google.ts
@@ -5,9 +5,16 @@ declare global {
   }
 }
 
+type JSONValue =
+  | string
+  | number
+  | boolean
+  | JSONValue[]
+  | { [key: string]: JSONValue }
+
 export type GTMParams = {
   gtmId: string
-  dataLayer?: string[]
+  dataLayer?: { [key: string]: JSONValue }
   dataLayerName?: string
   auth?: string
   preview?: string