diff --git a/CHANGELOG.adoc b/CHANGELOG.adoc
index 5d09dcc1..41528752 100644
--- a/CHANGELOG.adoc
+++ b/CHANGELOG.adoc
@@ -15,6 +15,7 @@ For a detailed view of what has changed, refer to the {url-repo}/commits/main[co
 
 Improvement::
 
+* Upgrade to asciidoctorj-diagram 2.2.3 (#1091)
 * Upgrade to jcommander 1.81 (#1079)
 * Upgrade to JRuby 9.3.4.0 (#1085)
 * Upgrade to Rouge 3.28.0 (#1085)
diff --git a/build.gradle b/build.gradle
index 1da30b2d..70e24c68 100644
--- a/build.gradle
+++ b/build.gradle
@@ -61,9 +61,9 @@ ext {
   arquillianSpockVersion = '1.0.0.CR1'
   asciidoctorjPdfVersion = '1.6.2'
   asciidoctorjEpub3Version = '1.5.1'
-  asciidoctorjDiagramVersion = '2.2.1'
-  asciidoctorjDiagramDitaaMiniVersion = '1.0.1'
-  asciidoctorjDiagramPlantumlVersion = '1.2021.8'
+  asciidoctorjDiagramVersion = '2.2.3'
+  asciidoctorjDiagramDitaaMiniVersion = '1.0.3'
+  asciidoctorjDiagramPlantumlVersion = '1.2022.5'
   asciidoctorjRevealJsVersion = '4.1.0'
   commonsioVersion = '2.11.0'
   guavaVersion = '18.0'