diff --git a/.circleci/config.yml b/.circleci/config.yml
index 51d2661..f9d2e95 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -14,7 +14,7 @@ default: &default-steps
         command: apt-get update
     - run:
         name: Install prerequisites
-        command: apt-get install -y openjdk-8-jre make python git
+        command: apt-get install -y openjdk-11-jre make python git
     - run:
         name: Install cask
         command: curl -fsSL https://raw.githubusercontent.com/cask/cask/master/go | python
diff --git a/plantuml-mode.el b/plantuml-mode.el
index c811081..273fb28 100644
--- a/plantuml-mode.el
+++ b/plantuml-mode.el
@@ -93,7 +93,7 @@
 
 (defvar plantuml-mode-hook nil "Standard hook for plantuml-mode.")
 
-(defconst plantuml-mode-version "20190821.1447" "The plantuml-mode version string.")
+(defconst plantuml-mode-version "20190821.1520" "The plantuml-mode version string.")
 
 (defvar plantuml-mode-debug-enabled nil)