diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index c1c0742..613eaf8 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -1,5 +1,7 @@
 # 0.1.5
 
+* Fixed a bug where the response input stream from S3 may not be fully exhausted when
+  storing a file.
 * Upgraded from go 1.12 to 1.16, which is now required
 * Changed build base image from FROM `golang:1.12.5-alpine3.9` to `golang:1.16.15-alpine3.15`
 
diff --git a/filestore/s3.go b/filestore/s3.go
index 4cad268..cb819e8 100644
--- a/filestore/s3.go
+++ b/filestore/s3.go
@@ -151,6 +151,7 @@ func (fs *S3FileStore) StoreFile(le *logrus.Entry, p *StoreFileParams) (out *Fil
 		return nil, errors.New("s3 store request: " + errstr)
 	}
 	defer resp.Body.Close()
+	defer io.Copy(io.Discard, resp.Body)
 	if resp.StatusCode > 399 { // don't worry about 100s, shouldn't happen
 		buffer := make([]byte, 1000)
 		n, err := resp.Body.Read(buffer)