diff --git a/pom.xml b/pom.xml
index 8b3ef1c..28a3e5d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -105,7 +105,7 @@
         <dependency>
             <groupId>commons-io</groupId>
             <artifactId>commons-io</artifactId>
-            <version>2.2</version>
+            <version>2.4</version>
         </dependency>
 
         <dependency>
@@ -123,7 +123,7 @@
         <dependency>
             <groupId>org.antlr</groupId>
             <artifactId>antlr4-runtime</artifactId>
-            <version>4.5</version>
+            <version>4.5.3</version>
         </dependency>
         <dependency>
             <groupId>org.codehaus.mojo</groupId>