diff --git a/pom.xml b/pom.xml
index 780e0acda..0ddf1fb42 100644
--- a/pom.xml
+++ b/pom.xml
@@ -312,7 +312,7 @@
         <plugin>
           <groupId>org.codehaus.mojo</groupId>
           <artifactId>animal-sniffer-maven-plugin</artifactId>
-          <version>1.20</version>
+          <version>1.21</version>
         </plugin>
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>