diff --git a/bel.firma/pom.xml b/bel.firma/pom.xml
index a48a520..c7659b4 100644
--- a/bel.firma/pom.xml
+++ b/bel.firma/pom.xml
@@ -55,7 +55,7 @@
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>
             <artifactId>log4j-core</artifactId>
-            <version>2.6.2</version>
+            <version>2.17.1</version>
         </dependency>
         <dependency>
             <groupId>com.ibm.icu</groupId>