diff --git a/README.md b/README.md
index b6731bc..df1f438 100644
--- a/README.md
+++ b/README.md
@@ -8,19 +8,20 @@
 
 ### Environment variables
 
-| Variable              | Required | Default value  | Description                                                             |
-|-----------------------|:--------:|----------------|-------------------------------------------------------------------------|
-| AWS_ACCESS_KEY_ID     | ✔        |                | Access key id for the AWS account                                       |
-| AWS_REGION            | ✔        |                | Region for the AWS bucket                                               |
-| AWS_S3_ENDPOINT       | ✔        |                | AWS S3 endpoint with bucket and path (e.g. "my-bucket/postgres-backup") |
-| AWS_SECRET_ACCESS_KEY | ✔        |                | Secret access key for the AWS account                                   |
-| POSTGRES_DB           | ✔        |                | Postgres server database                                                |
-| POSTGRES_HOST         |          | postgres       | Postgres server host                                                    |
-| POSTGRES_PASSWORD     | ✔        |                | Postgres server password                                                |
-| POSTGRES_PORT         |          | 5432           | Postgres server port                                                    |
-| POSTGRES_USER         |          | postgres       | Postgres server user                                                    |
-| POSTGRES_VERSION      |          | 15             | Postgres server version (12, 13, 14 or 15)                                  |
-| WEBGAZER_PULSE_URL    |          |                | [WebGazer Pulse](https://www.webgazer.io/pulse) URL                     |
+| Variable              | Required | Default value | Description                                                                                                                   |
+|-----------------------|:--------:|---------------|-------------------------------------------------------------------------------------------------------------------------------|
+| AWS_ACCESS_KEY_ID     |    ✔     |               | Access key id for the AWS account                                                                                             |
+| AWS_REGION            |    ✔     |               | Region for the AWS bucket                                                                                                     |
+| AWS_S3_ENDPOINT       |    ✔     |               | AWS S3 endpoint with bucket and path (e.g. "my-bucket/postgres-backup")                                                       |
+| AWS_S3_STORAGE_CLASS  |          | STANDARD_IA   | AWS S3 storage class (see https://aws.amazon.com/s3/storage-classes/ and https://rclone.org/s3/#s3-storage-class for options. |
+| AWS_SECRET_ACCESS_KEY |    ✔     |               | Secret access key for the AWS account                                                                                         |
+| POSTGRES_DB           |    ✔     |               | Postgres server database                                                                                                      |
+| POSTGRES_HOST         |          | postgres      | Postgres server host                                                                                                          |
+| POSTGRES_PASSWORD     |    ✔     |               | Postgres server password                                                                                                      |
+| POSTGRES_PORT         |          | 5432          | Postgres server port                                                                                                          |
+| POSTGRES_USER         |          | postgres      | Postgres server user                                                                                                          |
+| POSTGRES_VERSION      |          | 15            | Postgres server version (12, 13, 14 or 15)                                                                                    |
+| WEBGAZER_PULSE_URL    |          |               | [WebGazer Pulse](https://www.webgazer.io/pulse) URL                                                                           |
 
 ### Running
 
@@ -33,6 +34,7 @@
         -e POSTGRES_VERSION=<postgres_version[15]> \
         -e AWS_ACCESS_KEY_ID=<aws_access_key_id> \
         -e AWS_SECRET_ACCESS_KEY=<aws_secret_access_key> \
+        -e AWS_S3_STORAGE_CLASS=<aws_s3_storage_class[STANDARD_IA]> \
         -e AWS_S3_ENDPOINT=<aws_s3_endpoint> \
         -e WEBGAZER_PULSE_URL=<webgazer_pulse_url>
 
@@ -48,6 +50,7 @@
         -e AWS_ACCESS_KEY_ID=g9XqNnqKmUk6xqwkStkN \
         -e AWS_SECRET_ACCESS_KEY=GLBZ8mQf27UL57YHbkLhXWtfJWVwtUBbQup6mFzw \
         -e AWS_S3_ENDPOINT=my-bucket/postgres-backup \
+        -e AWS_S3_STORAGE_CLASS=GLACIER \
         -e WEBGAZER_PULSE_URL=https://pulse.webgazer.io/1-8f713c75d659
 
 ## Shameless plug
@@ -58,7 +61,8 @@ I am an indie hacker, and I am running two services that might be useful for you
 
 [<img alt="WebGazer" src="https://user-images.githubusercontent.com/698079/162474223-f7e819c4-4421-4715-b8a2-819583550036.png" width="256" />](https://www.webgazer.io/?utm_source=github&utm_campaign=postgres-s3-backup-readme)
 
-[WebGazer](https://www.webgazer.io/?utm_source=github&utm_campaign=postgres-s3-backup-readme) is a monitoring service that checks your website, cron jobs, or scheduled tasks on a regular basis. It notifies
+[WebGazer](https://www.webgazer.io/?utm_source=github&utm_campaign=postgres-s3-backup-readme) is a monitoring service
+that checks your website, cron jobs, or scheduled tasks on a regular basis. It notifies
 you with instant alerts in case of a problem. That way, you have peace of mind about the status of your service without
 manually checking it.
 
@@ -66,9 +70,11 @@ manually checking it.
 
 [<img alt="PoeticMetric" src="https://user-images.githubusercontent.com/698079/162474946-7c4565ba-5097-4a42-8821-d087e6f56a5d.png" width="256" />](https://www.poeticmetric.com/?utm_source=github&utm_campaign=postgres-s3-backup-readme)
 
-[PoeticMetric](https://www.poeticmetric.com/?utm_source=github&utm_campaign=postgres-s3-backup-readme) is a privacy-first, regulation-compliant, blazingly fast analytics tool.
+[PoeticMetric](https://www.poeticmetric.com/?utm_source=github&utm_campaign=postgres-s3-backup-readme) is a
+privacy-first, regulation-compliant, blazingly fast analytics tool.
 
-No cookies or personal data collection. So you don't have to worry about cookie banners or GDPR, CCPA, and PECR compliance.
+No cookies or personal data collection. So you don't have to worry about cookie banners or GDPR, CCPA, and PECR
+compliance.
 
 ## License
 
diff --git a/docker-entrypoint.sh b/docker-entrypoint.sh
index 1cca6f7..bcd0343 100644
--- a/docker-entrypoint.sh
+++ b/docker-entrypoint.sh
@@ -13,6 +13,7 @@ SECONDS=0
 : "${POSTGRES_PASSWORD:?Please set the environment variable.}"
 
 # optional environment variables with defaults
+AWS_S3_STORAGE_CLASS="${AWS_S3_STORAGE_CLASS:-STANDARD_IA}"
 POSTGRES_HOST="${POSTGRES_HOST:-postgres}"
 POSTGRES_PORT="${POSTGRES_PORT:-5432}"
 POSTGRES_USER="${POSTGRES_USER:-postgres}"
@@ -43,7 +44,7 @@ echo "Uploading to S3..."
 rclone copyto \
   --s3-no-check-bucket \
   "./${BACKUP_FILE_NAME}" \
-  ":s3,access_key_id=${AWS_ACCESS_KEY_ID},provider=AWS,region=${AWS_REGION},secret_access_key=${AWS_SECRET_ACCESS_KEY},storage_class=GLACIER:${AWS_S3_ENDPOINT}/${BACKUP_FILE_NAME}"
+  ":s3,access_key_id=${AWS_ACCESS_KEY_ID},provider=AWS,region=${AWS_REGION},secret_access_key=${AWS_SECRET_ACCESS_KEY},storage_class=${AWS_S#AWS_S3_STORAGE_CLASS}:${AWS_S3_ENDPOINT}/${BACKUP_FILE_NAME}"
 echo "Uploading to S3... Done."
 
 if [ -n "${WEBGAZER_PULSE_URL}" ]; then