More log4j updates

Change-Id: Ibc89679fe3065c5ec8f796ea28405a628ce27f91
diff --git a/pom.xml b/pom.xml
index d28761c..f759e7b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -40,7 +40,7 @@
 		<antlr4.version>4.9.3</antlr4.version>
 		<antlr3.version>3.5.2</antlr3.version>
 		<java.version>1.8</java.version>
-		<log4j.version>[2.16.0,)</log4j.version>
+		<log4j.version>[2.17.1,)</log4j.version>
 	</properties>
 	
 	<repositories>