diff --git a/Changelog.md b/Changelog.md
index 193499a..1d581d1 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## [Unreleased: 5.10.4-rc.1]
+### Changed
+ - Update pdf-server@5.10.4-rc.1
+
 ## 5.10.3
 ### Changed
  - Official Release
diff --git a/Dockerfile b/Dockerfile
index 6d43d78..78ff8ea 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -19,5 +19,5 @@
 ##                                                   ##
 #######################################################
 
-FROM formio/pdf-server:5.10.3
+FROM formio/pdf-server:5.10.4-rc.1
 COPY ./dist /src/node_modules/formio-viewer/dist/