diff --git a/log4j-transform-parent/pom.xml b/log4j-transform-parent/pom.xml
index c4cb8a4..e376fc0 100644
--- a/log4j-transform-parent/pom.xml
+++ b/log4j-transform-parent/pom.xml
@@ -32,7 +32,7 @@
 
     <!-- dependency versions -->
     <asm.version>9.7.1</asm.version>
-    <assertj.version>3.26.3</assertj.version>
+    <assertj.version>3.27.0</assertj.version>
     <commons-lang.version>3.17.0</commons-lang.version>
     <commons-logging.version>1.3.4</commons-logging.version>
     <commons-io.version>2.18.0</commons-io.version>
diff --git a/src/changelog/.0.x.x/update_org_assertj_assertj_core.xml b/src/changelog/.0.x.x/update_org_assertj_assertj_core.xml
new file mode 100644
index 0000000..0737986
--- /dev/null
+++ b/src/changelog/.0.x.x/update_org_assertj_assertj_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="155" link="https://github.com/apache/logging-log4j-transform/pull/155"/>
+  <description format="asciidoc">Update `org.assertj:assertj-core` to version `3.27.0`</description>
+</entry>