diff --git a/CHANGELOG.adoc b/CHANGELOG.adoc
index 407a97b0a..93e6bc794 100644
--- a/CHANGELOG.adoc
+++ b/CHANGELOG.adoc
@@ -13,6 +13,15 @@ For a detailed view of what has changed, refer to the {url-repo}/commits/master[
 
 == Unreleased
 
+Improvement::
+
+* Upgrade to asciidoctorj-pdf 1.5.4 (#986)
+* Upgrade to asciidoctorj-revealjs 4.1.0 (#986)
+* Upgrade to asciidoctorj-diagram 2.1.0 (#986)
+* Upgrade to jruby 9.2.14.0 (#986)
+* Upgrade to rouge 3.26.0 (#986)
+* Add constant for attribute toclevel (@l0wlik34G6) (#984)
+
 Build Improvement::
 
 * Publish directly to Maven Central (#988)
diff --git a/build.gradle b/build.gradle
index 6508261ef..d4acb38fe 100644
--- a/build.gradle
+++ b/build.gradle
@@ -55,15 +55,15 @@ ext {
   // jar versions
   arquillianVersion = '1.1.10.Final'
   arquillianSpockVersion = '1.0.0.Beta3'
-  asciidoctorjPdfVersion = '1.5.3'
+  asciidoctorjPdfVersion = '1.5.4'
   asciidoctorjEpub3Version = '1.5.0-alpha.19'
-  asciidoctorjDiagramVersion = '2.0.5'
-  asciidoctorjRevealJsVersion = '4.0.1'
+  asciidoctorjDiagramVersion = '2.1.0'
+  asciidoctorjRevealJsVersion = '4.1.0'
   commonsioVersion = '2.4'
   guavaVersion = '18.0'
   hamcrestVersion = '1.3'
   jcommanderVersion = '1.72'
-  jrubyVersion = '9.2.13.0'
+  jrubyVersion = '9.2.14.0'
   jsoupVersion = '1.12.1'
   junitVersion = '4.13.1'
   nettyVersion = '4.1.58.Final'
@@ -74,7 +74,7 @@ ext {
   // gem versions
   asciidoctorGemVersion = project.hasProperty('asciidoctorGemVersion') ? project.asciidoctorGemVersion : '2.0.12'
   coderayGemVersion = '1.1.3'
-  rougeGemVersion = '3.24.0'
+  rougeGemVersion = '3.26.0'
 
   codenarcVersion = '0.24.1'
   groovyVersion = '2.4.13'