diff --git a/CHANGELOG.md b/CHANGELOG.md
index fd8b65a..5c20eb7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,11 @@
 CHANGELOG
 =========
 
+Version 57a (June 19, 2022)
+---------------------------
+
+* The Backblaze backups fix posted in Version 57 was incomplete. It's now fixed.
+
 Version 57 (June 12, 2022)
 --------------------------
 
diff --git a/README.md b/README.md
index 02a274a..8fd2405 100644
--- a/README.md
+++ b/README.md
@@ -60,7 +60,7 @@ Clone this repository and checkout the tag corresponding to the most recent rele
 
 	$ git clone https://github.com/mail-in-a-box/mailinabox
 	$ cd mailinabox
-	$ git checkout v57
+	$ git checkout v57a
 
 Begin the installation.
 
diff --git a/setup/bootstrap.sh b/setup/bootstrap.sh
index 6629444..4ba0cee 100644
--- a/setup/bootstrap.sh
+++ b/setup/bootstrap.sh
@@ -20,7 +20,7 @@ if [ -z "$TAG" ]; then
 	# want to display in status checks.
 	if [ "$(lsb_release -d | sed 's/.*:\s*//' | sed 's/18\.04\.[0-9]/18.04/' )" == "Ubuntu 18.04 LTS" ]; then
 		# This machine is running Ubuntu 18.04.
-		TAG=v57
+		TAG=v57a
 
 	elif [ "$(lsb_release -d | sed 's/.*:\s*//' | sed 's/14\.04\.[0-9]/14.04/' )" == "Ubuntu 14.04 LTS" ]; then
 		# This machine is running Ubuntu 14.04.