diff --git a/build.mill b/build.mill
index 1e6f23f..4acc5ef 100644
--- a/build.mill
+++ b/build.mill
@@ -69,7 +69,7 @@ object utest extends Module {
       ivy"org.scala-native::test-interface::${scalaNativeVersion()}"
     )
 
-    def scalaNativeVersion = "0.5.4"
+    def scalaNativeVersion = "0.5.6"
     object test extends ScalaNativeTests with UtestTestModule
   }
 }