diff --git a/php-apache/Dockerfile b/php-apache/Dockerfile
index 9512ced..4f3fce3 100644
--- a/php-apache/Dockerfile
+++ b/php-apache/Dockerfile
@@ -24,7 +24,7 @@ VOLUME /var/roundcube/config
 VOLUME /tmp/roundcube-temp
 
 # Define Roundcubemail version
-ENV ROUNDCUBEMAIL_VERSION 1.3.4
+ENV ROUNDCUBEMAIL_VERSION 1.3.6
 
 # Download package and extract to web volume
 RUN curl -o roundcubemail.tar.gz -SL https://github.com/roundcube/roundcubemail/releases/download/${ROUNDCUBEMAIL_VERSION}/roundcubemail-${ROUNDCUBEMAIL_VERSION}-complete.tar.gz \
diff --git a/php-fpm/Dockerfile b/php-fpm/Dockerfile
index f07ccff..b0c086e 100644
--- a/php-fpm/Dockerfile
+++ b/php-fpm/Dockerfile
@@ -21,7 +21,7 @@ VOLUME /var/roundcube/config
 VOLUME /var/www/html
 
 # Define Roundcubemail version
-ENV ROUNDCUBEMAIL_VERSION 1.3.4
+ENV ROUNDCUBEMAIL_VERSION 1.3.6
 
 # Download package and extract to web volume
 RUN curl -o roundcubemail.tar.gz -SL https://github.com/roundcube/roundcubemail/releases/download/${ROUNDCUBEMAIL_VERSION}/roundcubemail-${ROUNDCUBEMAIL_VERSION}-complete.tar.gz \