diff --git a/Dockerfile b/Dockerfile
index ad33265..19bba67 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
-FROM alpine:3.15
+FROM alpine:3.19
 
 RUN apk update \
-    && apk --no-cache add dumb-init postgresql-client curl aws-cli
+    && apk --no-cache add dumb-init postgresql16-client curl aws-cli
 
 RUN curl -L https://github.com/odise/go-cron/releases/download/v0.0.7/go-cron-linux.gz | zcat > /usr/local/bin/go-cron && chmod +x /usr/local/bin/go-cron
 
@@ -9,4 +9,4 @@ COPY entrypoint.sh .
 COPY backup.sh .
 
 ENTRYPOINT ["/usr/bin/dumb-init", "--"]
-CMD ["sh", "entrypoint.sh"]
\ No newline at end of file
+CMD ["sh", "entrypoint.sh"]
diff --git a/backup.sh b/backup.sh
index 5f2ab59..d138d13 100644
--- a/backup.sh
+++ b/backup.sh
@@ -56,7 +56,7 @@ case "${PG_BACKUP_ACTION:-dump}" in
     # TODO: check if database is fresh
     echo "Snapshotting $POSTGRES_DB database"
     pg_dump -Fc $POSTGRES_HOST_OPTS $POSTGRES_DB > dump.backup
-    aws configure set default.s3.multipart_chunksize 16MB
+    aws configure set default.s3.multipart_chunksize 64MB
 
     if [ "${PRIVATE_BACKUP}" == "true" ] || [ "${PRIVATE_BACKUP}" == "1"  ]; then
       echo "Rotating old snapshot"
@@ -66,7 +66,7 @@ case "${PG_BACKUP_ACTION:-dump}" in
       cat dump.backup | aws $AWS_ARGS s3 cp - s3://$S3_BUCKET/$S3_PATH/$S3_FILENAME.backup --acl private || exit 2
     else
       echo "Rotating old snapshot"
-      aws $AWS_ARGS s3 cp s3://$S3_BUCKET/$S3_PATH/$S3_FILENAME.backup s3://$S3_BUCKET/$S3_PATH/$S3_FILENAME.old.backup --acl public-read || true
+      aws $AWS_ARGS s3 cp s3://$S3_BUCKET/$S3_PATH/$S3_FILENAME.backup s3://$S3_BUCKET/$S3_PATH/$S3_FILENAME.old.backup --metadata-directive REPLACE --acl public-read || true
 
       echo "Uploading fresh public snapshot to $S3_BUCKET/$S3_PATH/$S3_FILENAME"
       cat dump.backup | aws $AWS_ARGS s3 cp - s3://$S3_BUCKET/$S3_PATH/$S3_FILENAME.backup --acl public-read || exit 2
@@ -93,3 +93,4 @@ case "${PG_BACKUP_ACTION:-dump}" in
     pg_restore -v -d $POSTGRES_DB $POSTGRES_HOST_OPTS dump.backup
     ;;
 esac
+
diff --git a/boto.config b/boto.config
new file mode 100644
index 0000000..c68baf8
--- /dev/null
+++ b/boto.config
@@ -0,0 +1,13 @@
+[Credentials]
+gs_access_key_id=replace_gs_access_key_id
+gs_secret_access_key=replace_gs_secret_access_key
+
+[Boto]
+
+[GoogleCompute]
+
+[GSUtil]
+content_language = en
+default_api_version = 2
+
+[OAuth2]
\ No newline at end of file