diff --git a/CHANGELOG.adoc b/CHANGELOG.adoc
index d19d97ee..6e68f408 100644
--- a/CHANGELOG.adoc
+++ b/CHANGELOG.adoc
@@ -13,6 +13,8 @@ For a detailed view of what has changed, refer to the {url-repo}/commits/main[co
 
 == Unreleased
 
+== 2.5.13 (2024-05-19)
+
 Improvement::
 
 * Upgrade to asciidoctor 2.0.23 (#1272)
diff --git a/README.adoc b/README.adoc
index 3a9dec1c..cece6a5d 100644
--- a/README.adoc
+++ b/README.adoc
@@ -29,9 +29,9 @@ ifndef::awestruct[:uri-docs: https://asciidoctor.org/docs]
 :uri-repo: https://github.com/asciidoctor/asciidoctorj
 :uri-issues: {uri-repo}/issues
 :uri-zulip: https://asciidoctor.zulipchat.com/
-:artifact-version: 2.5.11
-:asciidoctorj-epub3-version: 2.0.1
-:asciidoctorj-pdf-version: 2.3.12
+:artifact-version: 2.5.13
+:asciidoctorj-epub3-version: 2.1.3
+:asciidoctorj-pdf-version: 2.3.15
 :uri-maven-artifact-query: http://search.maven.org/#search%7Cga%7C1%7Cg%3A%22org.asciidoctor%22%20AND%20a%3A%22asciidoctorj%22%20AND%20v%3A%22{artifact-version}%22
 :uri-maven-artifact-detail: http://search.maven.org/#artifactdetails%7Corg.asciidoctor%7Casciidoctorj%7C{artifact-version}%7Cjar
 :uri-maven-artifact-file: http://search.maven.org/remotecontent?filepath=org/asciidoctor/asciidoctorj/{artifact-version}/asciidoctorj-{artifact-version}
diff --git a/docs/antora.yml b/docs/antora.yml
index 0185a151..28d0d820 100644
--- a/docs/antora.yml
+++ b/docs/antora.yml
@@ -3,11 +3,11 @@ title: AsciidoctorJ
 version: '2.5'
 asciidoc:
   attributes:
-    release-version: 2.5.11
-    artifact-version: 2.5.11
-    asciidoctorj-epub3-version: 2.0.1
-    asciidoctorj-pdf-version: 2.3.12
-    jruby-version: 9.4.5.0
+    release-version: 2.5.13
+    artifact-version: 2.5.13
+    asciidoctorj-epub3-version: 2.1.3
+    asciidoctorj-pdf-version: 2.3.15
+    jruby-version: 9.4.7.0
     url-jruby: https://www.jruby.org/
     url-gradle: https://gradle.org
     url-repo: https://github.com/asciidoctor/asciidoctorj
diff --git a/gradle.properties b/gradle.properties
index f3895b9d..953b823b 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,2 +1,2 @@
-version=2.5.13-SNAPSHOT
+version=2.5.13
 org.gradle.jvmargs=-XX:MaxMetaspaceSize=512m