diff --git a/slack-appender/pom.xml b/slack-appender/pom.xml
index b8a9f8d..0d33584 100644
--- a/slack-appender/pom.xml
+++ b/slack-appender/pom.xml
@@ -115,7 +115,7 @@
                     <plugin>
                         <groupId>org.apache.maven.plugins</groupId>
                         <artifactId>maven-gpg-plugin</artifactId>
-                        <version>1.5</version>
+                        <version>3.2.3</version>
                         <executions>
                             <execution>
                                 <id>sign-artifacts</id>