diff --git a/pom.xml b/pom.xml
index df691c60..35f3b4d3 100644
--- a/pom.xml
+++ b/pom.xml
@@ -481,7 +481,7 @@
         <plugin>
           <groupId>org.codehaus.mojo</groupId>
           <artifactId>animal-sniffer-maven-plugin</artifactId>
-          <version>1.20</version>
+          <version>1.21</version>
         </plugin>
         <plugin>
           <groupId>org.jetbrains.dokka</groupId>