diff --git a/docs/configs/clearml_conf.md b/docs/configs/clearml_conf.md
index feaa36c1..17615800 100644
--- a/docs/configs/clearml_conf.md
+++ b/docs/configs/clearml_conf.md
@@ -711,6 +711,13 @@ metrics, network, AWS S3 buckets and credentials, Google Cloud Storage, Azure St
 * Dictionary of AWS Storage, AWS S3 options.
     
 ---
+
+**`sdk.aws.s3.extra_args`** (*dict*)
+
+* Additional [ExtraArgs](https://boto3.amazonaws.com/v1/documentation/api/latest/guide/s3-uploading-files.html#the-extraargs-parameter) 
+  passed to boto3 when uploading files. This can be set on a per-bucket under `sdk.aws.s3.credentials`.
+
+---
     
 **`sdk.aws.s3.key`** (*string*)
     
diff --git a/docs/integrations/storage.md b/docs/integrations/storage.md
index 4032f3f5..d3f94ab1 100644
--- a/docs/integrations/storage.md
+++ b/docs/integrations/storage.md
@@ -29,6 +29,9 @@ You can also enable using a credentials chain to let Boto3
 pick the right credentials. This includes picking credentials from environment variables, a credential file, and metadata service 
 with an IAM role configured. See [Boto3 documentation](https://boto3.amazonaws.com/v1/documentation/api/latest/guide/credentials.html#configuring-credentials).
 
+You can specify additional [ExtraArgs](https://boto3.amazonaws.com/v1/documentation/api/latest/guide/s3-uploading-files.html#the-extraargs-parameter) 
+to pass to boto3 when uploading files. You can set this on a per-bucket basis. 
+
 ```
 aws {
     s3 {
@@ -38,7 +41,9 @@ aws {
         key: ""
         secret: ""
         region: ""
-
+        use_credentials_chain: false
+        extra_args: {}
+        
         credentials: [
             # specifies key/secret credentials to use when handling s3 urls (read or write)
             {