diff --git a/CHANGELOG.md b/CHANGELOG.md
index 00ec65b8f..81478add3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -26,6 +26,7 @@ Please see [CONTRIBUTING.md](https://github.com/cucumber/cucumber/blob/master/CO
 
 * Prevent duplicate scenario execution where the same feature is targeted in multiple line expressions ([#1706](https://github.com/cucumber/cucumber-js/issues/1706))
 * Fixed reports banner to point to [new docs](https://cucumber.io/docs/cucumber/environment-variables/) about environment variables 
+* IParameterTypeDefinition regexp fix [1702](https://github.com/cucumber/cucumber-js/issues/1702)
 
 ## [7.3.0] (2021-06-17)
 
diff --git a/src/support_code_library_builder/types.ts b/src/support_code_library_builder/types.ts
index 5eb5b2dac..67d783053 100644
--- a/src/support_code_library_builder/types.ts
+++ b/src/support_code_library_builder/types.ts
@@ -59,7 +59,7 @@ export interface IDefineTestRunHookOptions {
 
 export interface IParameterTypeDefinition<T> {
   name: string
-  regexp: RegExp
+  regexp: readonly RegExp[] | readonly string[] | RegExp | string
   transformer: (...match: string[]) => T
   useForSnippets?: boolean
   preferForRegexpMatch?: boolean