diff --git a/pom.xml b/pom.xml
index d26fbc1..a7c378e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -107,7 +107,7 @@
         <groupId>org.apache.commons</groupId>
         <artifactId>commons-lang3</artifactId>
         <!-- if upgrading, be sure to check shaded jar relocations! -->
-        <version>3.1</version>
+        <version>3.11</version>
       </dependency>
       <dependency>
         <groupId>junit</groupId>
@@ -205,7 +205,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-pmd-plugin</artifactId>
-        <version>2.5</version>
+        <version>3.13.0</version>
         <configuration>
           <targetJdk>1.5</targetJdk>
         </configuration>
@@ -230,7 +230,7 @@
       <plugin>
         <groupId>org.codehaus.mojo</groupId>
         <artifactId>findbugs-maven-plugin</artifactId>
-        <version>2.5.1</version>
+        <version>3.0.5</version>
         <configuration>
           <threshold>Normal</threshold>
           <effort>Default</effort>
@@ -238,7 +238,7 @@
       </plugin>
       <plugin>
         <artifactId>maven-checkstyle-plugin</artifactId>
-        <version>2.6</version>
+        <version>3.1.1</version>
         <configuration>
           <configLocation>org/apache/commons/functor/checkstyle.xml</configLocation>
           <headerLocation>org/apache/commons/functor/license-header.txt</headerLocation>