update dependencies
diff --git a/.gitignore b/.gitignore
index f79c928..e1b7e45 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,3 +13,5 @@
 /bootstrap
 /dependencies.xml
 .java-version
+.checkstyle
+
diff --git a/pom.xml b/pom.xml
index 098de37..e1544e8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -102,7 +102,7 @@
           <dependency>
               <groupId>org.ow2.asm</groupId>
               <artifactId>asm</artifactId>
-              <version>7.2</version>
+              <version>7.3.1</version>
           </dependency>
       </dependencies>
   </dependencyManagement>
@@ -175,7 +175,7 @@
     <dependency>
       <groupId>commons-io</groupId>
       <artifactId>commons-io</artifactId>
-      <version>2.5</version>
+      <version>2.6</version>
     </dependency>
 
     <!-- doxia -->
@@ -199,7 +199,7 @@
     <dependency>
       <groupId>org.codehaus.plexus</groupId>
       <artifactId>plexus-archiver</artifactId>
-      <version>4.1.0</version>
+      <version>4.2.2</version>
     </dependency>
     <dependency>
       <groupId>org.codehaus.plexus</groupId>
@@ -220,7 +220,7 @@
     <dependency>
       <groupId>org.codehaus.plexus</groupId>
       <artifactId>plexus-io</artifactId>
-      <version>3.1.0</version>
+      <version>3.2.0</version>
     </dependency>
 
     <!-- shared -->
@@ -248,7 +248,7 @@
     <dependency>
       <groupId>org.apache.maven.shared</groupId>
       <artifactId>maven-artifact-transfer</artifactId>
-      <version>0.11.0</version>
+      <version>0.12.0</version>
     </dependency>
     <dependency>
       <groupId>org.apache.maven.shared</groupId>
@@ -284,7 +284,7 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.11</version>
+      <version>4.13</version>
       <scope>test</scope>
     </dependency>
     <dependency>
@@ -309,7 +309,7 @@
    <dependency>
       <groupId>org.codehaus.plexus</groupId>
       <artifactId>plexus-interpolation</artifactId>
-      <version>1.24</version>
+      <version>1.26</version>
       <scope>test</scope>
     </dependency>