diff --git a/mcs.xml b/mcs.xml
index a3cf8a43..d64b421f 100644
--- a/mcs.xml
+++ b/mcs.xml
@@ -11,7 +11,7 @@
   <project name="HOL" path="HOL4" revision="ab03cec5200c8b23f9ba60c5cea958cfcd0cd158" dest-branch="successful-decompile"/>
   <project name="graph-refine" revision="8924af0c61c3c863db7957e0ebac7ae1ceefad9d" dest-branch="master"/>
   <project name="isabelle" revision="refs/tags/Isabelle2024" dest-branch="ts-2024"/>
-  <project name="l4v" revision="55544107f13f8859f34ac6d248b7db6b6471958e" dest-branch="rt"/>
+  <project name="l4v" revision="83a161dbea3f94af3b12f9480d8029e1dde6a8e9" dest-branch="rt"/>
   <project name="polyml" path="HOL4/polyml" revision="bf2020d077bfbb1c5911dcef20bd275c95da7162" dest-branch="successful-decompile"/>
   <project name="seL4" revision="c679fe77d6441cd412dd253d953ee833dd25d740"/>
 </manifest>
\ No newline at end of file