diff --git a/Dockerfile b/Dockerfile
index e2d7f81..d6e854c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 FROM alpine:3.11 AS builder
 
-ENV VERSION=1.4.2
-ENV SHA256_SUM=c83a746c3ab561ab51df5729627d33bba3520c5d59ee03762739b4e8ad9b0f69
+ENV VERSION=1.4.3
+ENV SHA256_SUM=24f250289f961813a222d0cb8e1449dc95b0605334b2fd4d4468ecd96e4e54bf
 RUN wget https://github.com/roundcube/roundcubemail/releases/download/$VERSION/roundcubemail-$VERSION-complete.tar.gz
 RUN echo "$SHA256_SUM  roundcubemail-$VERSION-complete.tar.gz" | sha256sum -c - || exit 1
 RUN mkdir -p /var/lib/roundcube