diff --git a/default.xml b/default.xml
index b55e4de6..f29e741b 100644
--- a/default.xml
+++ b/default.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/Isabelle2023" dest-branch="ts-2023"/>
-  <project name="l4v" revision="9c9a23e62b99f528d3b915f2b81d5ad5e6416d65" dest-branch="master"/>
+  <project name="l4v" revision="b1c29000ec130c0fe8c25753bcd32c055214c053" dest-branch="master"/>
   <project name="polyml" path="HOL4/polyml" revision="bf2020d077bfbb1c5911dcef20bd275c95da7162" dest-branch="successful-decompile"/>
   <project name="seL4" revision="70c7caf2f8422900f471b1eaa4bb1b11462153e6"/>
 </manifest>
\ No newline at end of file