diff --git a/packages/s3-request-presigner/README.md b/packages/s3-request-presigner/README.md
index 94af66e42b952..8bf133e935860 100644
--- a/packages/s3-request-presigner/README.md
+++ b/packages/s3-request-presigner/README.md
@@ -86,7 +86,7 @@ If your request contains server-side encryption(`x-amz-server-side-encryption*`)
 headers, because of S3 limitation, you need to send these headers along
 with the presigned url. That is to say, the url only from calling `formatUrl()`
 to `presigned` is not sufficient to make a request. You need to send the
-server-side encryption headers along with url. These headers remain in the
+server-side encryption headers along with the url. These headers remain in the
 `presigned.headers`
 
 For more information, please go to [S3 SSE reference](https://docs.aws.amazon.com/AmazonS3/latest/dev/KMSUsingRESTAPI.html)
diff --git a/packages/types/src/signature.ts b/packages/types/src/signature.ts
index f5da98aef4e37..f024cb2e9dc81 100644
--- a/packages/types/src/signature.ts
+++ b/packages/types/src/signature.ts
@@ -54,9 +54,9 @@ export interface RequestPresigningArguments extends RequestSigningArguments {
   expiresIn?: number;
 
   /**
-   * A set of string whose members represents headers that should not be hoisted
-   * to presigned request's query string. If not supplied, the presigner will
-   * move all the AWS-specific headers(starting with `x-amz-`) to the request
+   * A set of strings whose representing headers that should not be hoisted
+   * to presigned request's query string. If not supplied, the presigner
+   * moves all the AWS-specific headers (starting with `x-amz-`) to the request
    * query string. If supplied, these headers remain in the presigned request's
    * header.
    * All headers in the provided request will have their names converted to