diff --git a/ivy.xml b/ivy.xml
index 31a47fb..60f82a5 100644
--- a/ivy.xml
+++ b/ivy.xml
@@ -17,9 +17,9 @@
     <dependency org="xerces" name="xercesImpl" rev="2.12.0" conf="build,bundle->default"/>
     <dependency org="xalan" name="xalan" rev="2.7.2" conf="build,bundle->default"/>
     
-    <dependency org="org.apache.logging.log4j" name="log4j-api" rev="2.13.3" conf="build,bundle->default"/>
-    <dependency org="org.apache.logging.log4j" name="log4j-core" rev="2.13.3" conf="build,bundle->default"/>
-    <dependency org="org.apache.logging.log4j" name="log4j-jcl" rev="2.13.3"  conf="build,bundle->default"/>
+    <dependency org="org.apache.logging.log4j" name="log4j-api" rev="2.15.0" conf="build,bundle->default"/>
+    <dependency org="org.apache.logging.log4j" name="log4j-core" rev="2.15.0" conf="build,bundle->default"/>
+    <dependency org="org.apache.logging.log4j" name="log4j-jcl" rev="2.15.0"  conf="build,bundle->default"/>
     
     <dependency org="net.sourceforge.nekohtml" name="nekohtml" rev="1.9.22" conf="bundle->default"/>