diff --git a/README.md b/README.md
index e4e7233..59b0502 100644
--- a/README.md
+++ b/README.md
@@ -119,9 +119,10 @@ To use Amazon S3 set `STORAGE_PROVIDER=s3`, ensure the following variables are l
 
 ```
 STORAGE_PROVIDER=s3
-AWS_ACCESS_KEY=
-AWS_SECRET_KEY=
-AWS_REGION=
+AWS_ACCESS_KEY_ID=
+AWS_SECRET_ACCESS_KEY=
+AWS_DEFAULT_REGION=
+AWS_ENDPOINT_URL_S3=
 AWS_BUCKET=
 ```