diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 9b4de5c..93af02f 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -38,7 +38,7 @@ jobs:
           sudo gem install rouge
           sudo gem install asciidoctor-pdf -v 2.3.2
           sudo gem install asciidoctor-mermaid -v 0.4.1
-          sudo npm install -g @mermaid-js/mermaid-cli@9.1.2
+          sudo npm install -g @mermaid-js/mermaid-cli@11.4.0
       - name: Report versions
         run: |
           asciidoctor --version