diff --git a/log4j-parent/pom.xml b/log4j-parent/pom.xml
index 28c371abefa..db50872ff6d 100644
--- a/log4j-parent/pom.xml
+++ b/log4j-parent/pom.xml
@@ -119,7 +119,7 @@
     <log4j-transform.version>0.2.0</log4j-transform.version>
     <log4j2-cachefile-transformer.version>2.15.0</log4j2-cachefile-transformer.version>
     <log4j2-ecs-layout.version>1.8.0</log4j2-ecs-layout.version>
-    <logback.version>1.3.15</logback.version>
+    <logback.version>1.5.34</logback.version>
     <maven.version>3.9.16</maven.version>
     <mockito.version>4.11.0</mockito.version>
     <nashorn.version>15.7</nashorn.version>
diff --git a/pom.xml b/pom.xml
index be528c33bb2..f021446b828 100644
--- a/pom.xml
+++ b/pom.xml
@@ -361,7 +361,7 @@
     <site-je.version>18.3.12</site-je.version>
     <site-jeromq.version>0.6.0</site-jeromq.version>
     <site-kafka.version>3.9.2</site-kafka.version>
-    <site-logback.version>1.3.15</site-logback.version>
+    <site-logback.version>1.5.34</site-logback.version>
     <site-slf4j.version>2.0.18</site-slf4j.version>
 
     <!-- =====================================================
diff --git a/src/changelog/.2.x.x/update_ch.qos.logback_logback-core.xml b/src/changelog/.2.x.x/update_ch.qos.logback_logback-core.xml
new file mode 100644
index 00000000000..632472b1754
--- /dev/null
+++ b/src/changelog/.2.x.x/update_ch.qos.logback_logback-core.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<entry xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xmlns="https://logging.apache.org/xml/ns"
+       xsi:schemaLocation="https://logging.apache.org/xml/ns https://logging.apache.org/xml/ns/log4j-changelog-0.xsd"
+       type="updated">
+  <issue id="4253" link="https://github.com/apache/logging-log4j2/pull/4253"/>
+  <description format="asciidoc">Update `ch.qos.logback:logback-core` to version `1.5.34`</description>
+</entry>