diff --git a/apps/rpn b/apps/rpn
index e0e12a917..acf9db8e5 160000
--- a/apps/rpn
+++ b/apps/rpn
@@ -1 +1 @@
-Subproject commit e0e12a91721b3f6c6949da9da0bd76f3083ac46f
+Subproject commit acf9db8e5f887fb9e982fbe5fccc80d00688620a