diff --git a/Dockerfile b/Dockerfile
index 7b8712c..a8ad5a9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM docker.io/asciidoctor/docker-asciidoctor:1.77.0
+FROM docker.io/asciidoctor/docker-asciidoctor:1.78.0
 
 RUN apk add --no-cache ghostscript
 RUN gem install asciidoctor-lists rghost