diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 8ed4c16fd2a16a12ed97e81ed7fee79882b88f1d..9ba840bd435e458e9f7aafedda04feab0c8c7c78 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -2,7 +2,7 @@ image: docker:20.10.9
 
 variables:
   DOCKER_TLS_CERTDIR: "/certs"
-  IMAGE_VER: 4.2.4-1
+  IMAGE_VER: 4.2.9-1
 
 services:
   - docker:20.10.9-dind
diff --git a/Dockerfile b/Dockerfile
index 14a6f03de7fefe8525201579ec9c742e168f9d1f..59ad4203e75b14bd5ab04ccf6539344ea0bb4fbf 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,3 +1,3 @@
-FROM graylog/graylog:4.2.4
+FROM graylog/graylog:4.2.9
 MAINTAINER Andrej Ramašeuski <andrej.ramaseuski@pirati.cz>
-RUN curl -L -o /usr/share/graylog/plugin/graylog-output-syslog-3.3.0.jar https://github.com/wizecore/graylog2-output-syslog/releases/download/3.3.0/graylog-output-syslog-3.3.0.jar
+RUN curl -L -o /usr/share/graylog/plugin/graylog-output-syslog-4.2.6.jar https://github.com/wizecore/graylog2-output-syslog/releases/download/4.2.6/graylog-output-syslog-4.2.6.jar