diff --git a/pom.xml b/pom.xml
index 9845c1ec..7be36765 100644
--- a/pom.xml
+++ b/pom.xml
@@ -87,7 +87,7 @@
     <!-- Keep in sync with Maven -->
     <maven.resolver.version>1.9.23</maven.resolver.version>
     <slf4j.version>1.7.36</slf4j.version>
-    <sisu.version>0.9.0.M3</sisu.version>
+    <sisu.version>0.9.0.M4</sisu.version>
 
     <!-- plugin versions a..z -->
     <buildnumber-maven-plugin.version>3.2.1</buildnumber-maven-plugin.version>