diff --git a/pom.xml b/pom.xml
index d33bdf0d..2962a72e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -413,6 +413,7 @@
       <plugin>
         <groupId>org.codehaus.mojo</groupId>
         <artifactId>animal-sniffer-maven-plugin</artifactId>
+        <version>1.20</version>
         <executions>
           <execution>
             <id>java8</id>