diff --git a/antlr4-formatter/pom.xml b/antlr4-formatter/pom.xml
index 3b7c78f..02a3497 100644
--- a/antlr4-formatter/pom.xml
+++ b/antlr4-formatter/pom.xml
@@ -22,7 +22,7 @@
 		<dependency>
 			<groupId>commons-io</groupId>
 			<artifactId>commons-io</artifactId>
-			<version>2.16.1</version>
+			<version>2.21.0</version>
 		</dependency>
 	</dependencies>