diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index a00e2b8db4af1726cefa62854eb861faa5b3a262..154156c860004e6c6c13b8f2a2e47b9ac05881c7 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -3,7 +3,7 @@ image: docker:19.03.1
 variables:
   DOCKER_TLS_CERTDIR: "/certs"
   IMAGE_TAG: $CI_REGISTRY_IMAGE
-  IMAGE_VER: 3.3.6
+  IMAGE_VER: 3.3.8
 
 services:
   - docker:19.03.1-dind
diff --git a/Dockerfile b/Dockerfile
index fbf685ce9649c4006fa8bf705bd01a15d96fd291..b93ca20b542f79d7c15ee219dff53f3e28d8deab 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM graylog/graylog:3.3.6
+FROM graylog/graylog:3.3.8
 MAINTAINER Andrej Ramašeuski <andrej.ramaseuski@pirati.cz>
 RUN curl -L -o /usr/share/graylog/plugin/graylog-plugin-auth-sso-3.3.0.jar https://github.com/Graylog2/graylog-plugin-auth-sso/releases/download/3.3.0/graylog-plugin-auth-sso-3.3.0.jar
 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