diff --git a/setup/install.sh b/setup/install.sh
index 6202665..62a58c0 100755
--- a/setup/install.sh
+++ b/setup/install.sh
@@ -14,7 +14,7 @@ HOSTNAME="$1"
 
 WILDDUCK_COMMIT="ede67883842b29ae1a1595939534ce2d1a647f36"
 ZONEMTA_COMMIT="e058fccbf75a87c2d84df43e012ea579d2f9b481"
-WEBMAIL_COMMIT="4f4dcf9be18faca1f267f6c7694b99257a9396c6"
+WEBMAIL_COMMIT="855b44f729cfe88309d68b443ee57f933a77312d"
 WILDDUCK_ZONEMTA_COMMIT="53f25c5bc841b7eba10caca2ebc377287e56ebaa"
 WILDDUCK_HARAKA_COMMIT="04b91a5eaabc2ff4b284f4f8f991e9be4029e4cd"
 HARAKA_VERSION="2.8.14" # do not use 2.8.16