diff --git a/buildtools/pom.xml b/buildtools/pom.xml
index 13f3099..66726b6 100644
--- a/buildtools/pom.xml
+++ b/buildtools/pom.xml
@@ -68,7 +68,7 @@
         <dependency>
             <groupId>org.apache.maven.plugins</groupId>
             <artifactId>maven-shade-plugin</artifactId>
-            <version>3.4.1</version>
+            <version>3.5.1</version>
             <optional>true</optional>
             <scope>provided</scope>
         </dependency>
diff --git a/pom.xml b/pom.xml
index e159040..c294763 100644
--- a/pom.xml
+++ b/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>org.apache</groupId>
         <artifactId>apache</artifactId>
-        <version>29</version>
+        <version>31</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
@@ -195,7 +195,7 @@
                  <plugin>
                      <groupId>org.apache.maven.plugins</groupId>
                      <artifactId>maven-shade-plugin</artifactId>
-                     <version>3.4.1</version>
+                     <version>3.5.1</version>
                  </plugin>
                  <plugin>
                      <groupId>org.apache.maven.plugins</groupId>