Update `org.apache.logging.log4j:log4j-core` to version `2.23.1` (#10)
diff --git a/pom.xml b/pom.xml
index cb43a33..58060b1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -151,7 +151,7 @@
     <Class-Path>log4j-api-2.21.0.jar log4j-core-2.21.0.jar</Class-Path>
 
     <!-- dependency versions -->
-    <log4j.version>2.23.0</log4j.version>
+    <log4j.version>2.23.1</log4j.version>
 
   </properties>
 
diff --git a/src/changelog/.2.x.x/update_org_apache_logging_log4j_log4j_core.xml b/src/changelog/.2.x.x/update_org_apache_logging_log4j_log4j_core.xml
index 0fcf06a..4267626 100644
--- a/src/changelog/.2.x.x/update_org_apache_logging_log4j_log4j_core.xml
+++ b/src/changelog/.2.x.x/update_org_apache_logging_log4j_log4j_core.xml
@@ -3,6 +3,6 @@
        xmlns="http://logging.apache.org/log4j/changelog"
        xsi:schemaLocation="http://logging.apache.org/log4j/changelog https://logging.apache.org/log4j/changelog-0.1.3.xsd"
        type="updated">
-  <issue id="9" link="https://github.com/apache/logging-log4j-jmx-gui/pull/9"/>
-  <description format="asciidoc">Update `org.apache.logging.log4j:log4j-core` to version `2.23.0`</description>
+  <issue id="10" link="https://github.com/apache/logging-log4j-jmx-gui/pull/10"/>
+  <description format="asciidoc">Update `org.apache.logging.log4j:log4j-core` to version `2.23.1`</description>
 </entry>
diff --git a/src/site/_constants.adoc b/src/site/_constants.adoc
index 33c520b..b349316 100644
--- a/src/site/_constants.adoc
+++ b/src/site/_constants.adoc
@@ -39,4 +39,4 @@
 :project-id: log4j-jmx-gui
 :java-target-version: 8
 :java-compiler-version: [17,18)
-:log4j-version: 2.23.0
+:log4j-version: 2.23.1
diff --git a/src/site/_release-notes/_2.x.x.adoc b/src/site/_release-notes/_2.x.x.adoc
index 8125783..0d17068 100644
--- a/src/site/_release-notes/_2.x.x.adoc
+++ b/src/site/_release-notes/_2.x.x.adoc
@@ -44,5 +44,5 @@
 === Updated
 
 * Update `apache/logging-parent` to version `` (https://github.com/apache/logging-log4j-jmx-gui/pull/6[6])
-* Update `org.apache.logging.log4j:log4j-core` to version `2.23.0` (https://github.com/apache/logging-log4j-jmx-gui/pull/9[9])
+* Update `org.apache.logging.log4j:log4j-core` to version `2.23.1` (https://github.com/apache/logging-log4j-jmx-gui/pull/10[10])
 * Update `org.apache.logging:logging-parent` to version `10.6.0` (https://github.com/apache/logging-log4j-jmx-gui/pull/7[7])