diff --git a/setup/webmail.sh b/setup/webmail.sh
index aa5c3221..0ab8ff55 100755
--- a/setup/webmail.sh
+++ b/setup/webmail.sh
@@ -35,7 +35,7 @@ apt-get purge -qq -y roundcube* #NODOC
 # Combine the Roundcube version number with the commit hash of vacation_sieve to track
 # whether we have the latest version.
 VERSION=1.2.0
-HASH=8100EE743D134DAC51D403E96AB332BCD41532F0
+HASH=2088985fb613b4e4e3373933ca44b26fce0489fb
 VACATION_SIEVE_VERSION=91ea6f52216390073d1f5b70b5f6bea0bfaee7e5
 PERSISTENT_LOGIN_VERSION=1e9d724476a370ce917a2fcd5b3217b0c306c24e
 HTML5_NOTIFIER_VERSION=4b370e3cd60dabd2f428a26f45b677ad1b7118d5