diff --git a/CHANGELOG.adoc b/CHANGELOG.adoc
index 3025eba9..2bffae95 100644
--- a/CHANGELOG.adoc
+++ b/CHANGELOG.adoc
@@ -13,6 +13,10 @@ For a detailed view of what has changed, refer to the {url-repo}/commits/main[co
 
 == Unreleased
 
+Improvement::
+
+* Upgrade to JRuby 9.4.2.0 (#1215) (@abelsromero)
+
 == 2.5.9 (2023-06-01)
 
 Improvement::
diff --git a/build.gradle b/build.gradle
index a14594f4..7c154a8c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -69,7 +69,7 @@ ext {
   guavaVersion = '18.0'
   hamcrestVersion = '1.3'
   jcommanderVersion = '1.82'
-  jrubyVersion = '9.3.10.0'
+  jrubyVersion = '9.4.2.0'
   jsoupVersion = '1.14.3'
   junitVersion = '4.13.2'
   assertjVersion = '3.19.0'