diff --git a/rootless-install.sh b/rootless-install.sh
index 8b165df0..1c0ace1a 100755
--- a/rootless-install.sh
+++ b/rootless-install.sh
@@ -24,7 +24,7 @@ SCRIPT_COMMIT_SHA=UNKNOWN
 STABLE_LATEST="27.3.1"
 
 # latest version available in the test channel.
-TEST_LATEST="27.3.1"
+TEST_LATEST="27.4.0-rc.1"
 
 # The channel to install from:
 #   * test