diff --git a/pom.xml b/pom.xml
index d6a446a1b0..4a8087c08b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -87,7 +87,7 @@
     <build-helper-maven-plugin.version>3.4.0</build-helper-maven-plugin.version>
     <asciidoctor.maven.plugin.version>2.2.4</asciidoctor.maven.plugin.version>
     <asciidoctorj.version>2.5.10</asciidoctorj.version>
-    <asciidoctorj.pdf.version>2.3.7</asciidoctorj.pdf.version>
+    <asciidoctorj.pdf.version>2.3.9</asciidoctorj.pdf.version>
     <asciidoctorj.diagram.version>2.2.9</asciidoctorj.diagram.version>
     <buildnumber.plugin.version>1.4</buildnumber.plugin.version>
     <jmh.version>1.36</jmh.version>