diff --git a/CHANGELOG.adoc b/CHANGELOG.adoc
index 7aea770a..f4b721f6 100644
--- a/CHANGELOG.adoc
+++ b/CHANGELOG.adoc
@@ -46,6 +46,7 @@ Improvement::
 * Upgrade to asciidoctorj-pdf 2.3.18 (#1280)
 * Upgrade to asciidoctorj-revealjs 5.1.0 (#1256)
 * Upgrade to asciidoctorj-diagram 2.3.1 (#1280)
+* Upgrade to asciidoctorj-diagram-jsyntrax 1.38.2 (#1282)
 * Upgrade to JRuby 9.4.8.0 (#1280)
 * Upgrade to tilt 2.0.11 (#1109)
 * Upgrade to asciimath 2.0.4 (#1109)
diff --git a/build.gradle b/build.gradle
index 6b40db16..8271b404 100644
--- a/build.gradle
+++ b/build.gradle
@@ -71,7 +71,7 @@ ext {
   asciidoctorjEpub3Version = '2.1.3'
   asciidoctorjDiagramVersion = '2.3.1'
   asciidoctorjDiagramDitaaMiniVersion = '1.0.3'
-  asciidoctorjDiagramJsyntraxVersion = '1.38.1'
+  asciidoctorjDiagramJsyntraxVersion = '1.38.2'
   asciidoctorjDiagramBatikVersion = '1.17'
   asciidoctorjDiagramPlantumlVersion = '1.2024.5'
   asciidoctorjRevealJsVersion = '5.1.0'