diff --git a/pom.xml b/pom.xml
index b0fab3e..196164f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -25,7 +25,7 @@ SPDX-License-Identifier: Apache-2.0
 
         <quarkus.platform.version>3.11.2</quarkus.platform.version>
         <log4j2.version>2.23.1</log4j2.version>
-        <powsybl.sld.version>4.4.0</powsybl.sld.version>
+        <powsybl.sld.version>4.9.0</powsybl.sld.version>
         <gson.version>2.13.1</gson.version>
         <openpojo.version>0.9.1</openpojo.version>
     </properties>