diff --git a/pom.xml b/pom.xml
index 82e47f1..82ce477 100644
--- a/pom.xml
+++ b/pom.xml
@@ -70,7 +70,7 @@
   </scm>
 
   <properties>
-    <pi4j.version>2.8.0</pi4j.version>
+    <pi4j.version>4.0.0</pi4j.version>
     <nvd.api.key>${env.NVD_API_KEY}</nvd.api.key>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>