diff --git a/assignments/nbproject/project.properties b/assignments/nbproject/project.properties
index f82ff6b50f00d61b5852bdbf48a88d23a20932ef..ea2e82106f5c916b44c5a4b88738cb9aa5772465 100644
--- a/assignments/nbproject/project.properties
+++ b/assignments/nbproject/project.properties
@@ -74,8 +74,8 @@ javac.modulepath=
 javac.processormodulepath=
 javac.processorpath=\
     ${javac.classpath}
-javac.source=22
-javac.target=22
+javac.source=23
+javac.target=23
 javac.test.classpath=\
     ${javac.classpath}:\
     ${build.classes.dir}