diff --git a/build.xml b/build.xml
index a42ec5ad9d..6dbf8a614e 100644
--- a/build.xml
+++ b/build.xml
@@ -283,7 +283,7 @@ under the License.
     <dependency prefix="main.jmh" artifact="org.openjdk.jmh:jmh-core:1.33" usage="main-tests"/>
     <dependency prefix="main.jmhAnnotation" artifact="org.openjdk.jmh:jmh-generator-annprocess:1.33" usage="main-tests"/>
     <dependency prefix="main.hamcrest" artifact="org.hamcrest:hamcrest:2.2" usage="main-tests"/>
-    <dependency prefix="main.xmlunit" artifact="org.xmlunit:xmlunit-core:2.8.3" usage="main-tests"/>
+    <dependency prefix="main.xmlunit" artifact="org.xmlunit:xmlunit-core:2.8.4" usage="main-tests"/>
     <dependency prefix="main.mockito" artifact="org.mockito:mockito-core:4.2.0" usage="main-tests"/>
     <dependency prefix="main.byte-buddy" artifact="net.bytebuddy:byte-buddy:1.12.3" usage="main-tests"/>
     <dependency prefix="main.byte-buddy-agent" artifact="net.bytebuddy:byte-buddy-agent:1.12.3" usage="main-tests"/>
diff --git a/poi-ooxml/build.gradle b/poi-ooxml/build.gradle
index 0411970d1d..2ed0eadf4b 100644
--- a/poi-ooxml/build.gradle
+++ b/poi-ooxml/build.gradle
@@ -132,7 +132,7 @@ dependencies {
     testImplementation project(path:':poi', configuration:'tests')
     testImplementation project(path:':poi-ooxml-lite-agent', configuration: 'archives')
     testRuntimeOnly "org.apiguardian:apiguardian-api:${apiGuardianVersion}"
-    testImplementation 'org.xmlunit:xmlunit-core:2.8.3'
+    testImplementation 'org.xmlunit:xmlunit-core:2.8.4'
     testImplementation 'org.reflections:reflections:0.10.2'
     testImplementation 'org.openjdk.jmh:jmh-core:1.33'
     testImplementation 'org.openjdk.jmh:jmh-generator-annprocess:1.33'