diff --git a/pom.xml b/pom.xml
index 48a6bc795..2f8de4eb1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -31,7 +31,7 @@
     <webjars-sockjs-client.version>1.1.2</webjars-sockjs-client.version>
     <webjars-webjars-locator.version>0.40</webjars-webjars-locator.version>
     <webjars-webjars-locator-core.version>0.46</webjars-webjars-locator-core.version>
-    <wro4j.version>1.8.0</wro4j.version>
+    <wro4j.version>1.9.0</wro4j.version>
 
     <checkstyle.version>8.32</checkstyle.version>
     <fasterxml-jackson-core.version>2.10.2</fasterxml-jackson-core.version>