diff --git a/upstream_utils/update_mpack.py b/upstream_utils/update_mpack.py
index 25eabfc..68315e9 100755
--- a/upstream_utils/update_mpack.py
+++ b/upstream_utils/update_mpack.py
@@ -13,7 +13,7 @@
 
 
 def main():
-    upstream_root = clone_repo("https://github.com/ludocode/mpack", "v1.1")
+    upstream_root = clone_repo("https://github.com/ludocode/mpack", "v1.1.1")
     wpilib_root = get_repo_root()
     wpiutil = os.path.join(wpilib_root, "wpiutil")
 
@@ -31,6 +31,7 @@
         "0001-Don-t-emit-inline-defs.patch",
         "0002-Update-amalgamation-script.patch",
         "0003-Use-namespace-for-C.patch",
+        "0004-Group-doxygen-into-MPack-module.patch",
     ]:
         git_am(
             os.path.join(wpilib_root, "upstream_utils/mpack_patches", f),