diff --git a/CHANGELOG.adoc b/CHANGELOG.adoc
index 39a7ec7a8..3a1ebe3cd 100644
--- a/CHANGELOG.adoc
+++ b/CHANGELOG.adoc
@@ -13,6 +13,11 @@ For a detailed view of what has changed, refer to the {url-repo}/commits/main[co
 
 == Unreleased
 
+Improvement::
+
+* Upgrade to asciidoctorj-pdf 2.1.6 (#1094)
+
+
 == 2.5.4 (2022-06-30)
 
 Improvement::
diff --git a/build.gradle b/build.gradle
index 70e24c68a..2d6b2ae38 100644
--- a/build.gradle
+++ b/build.gradle
@@ -59,7 +59,7 @@ ext {
   // jar versions
   arquillianVersion = '1.6.0.Final'
   arquillianSpockVersion = '1.0.0.CR1'
-  asciidoctorjPdfVersion = '1.6.2'
+  asciidoctorjPdfVersion = '2.1.6'
   asciidoctorjEpub3Version = '1.5.1'
   asciidoctorjDiagramVersion = '2.2.3'
   asciidoctorjDiagramDitaaMiniVersion = '1.0.3'
diff --git a/gradle.properties b/gradle.properties
index b1228a985..b640a87a0 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,2 +1,2 @@
-version=2.5.4
+version=3.0.0-SNAPSHOT
 org.gradle.jvmargs=-XX:MaxMetaspaceSize=512m