diff --git a/convert/pom.xml b/convert/pom.xml
index 4c69feb..18701e6 100644
--- a/convert/pom.xml
+++ b/convert/pom.xml
@@ -14,7 +14,7 @@
     <properties>
         <flexmark.version>0.64.4</flexmark.version>
         <asciidoctorj.version>2.5.13</asciidoctorj.version>
-        <asciidoctorj-diagram.version>2.3.0</asciidoctorj-diagram.version>
+        <asciidoctorj-diagram.version>2.3.1</asciidoctorj-diagram.version>
     </properties>
 
     <dependencies>