diff --git a/.devcontainer/cpp/apt-requirements-clang.json b/.devcontainer/cpp/apt-requirements-clang.json
index 413948e2..e843b8c5 100644
--- a/.devcontainer/cpp/apt-requirements-clang.json
+++ b/.devcontainer/cpp/apt-requirements-clang.json
@@ -7,5 +7,5 @@
   "libclang-rt-18-dev": "1:18.1.8~++20240731025043+3b5b5c1ec4a3-1~exp1~20240731145144.92",
   "lld-18": "1:18.1.8~++20240731025043+3b5b5c1ec4a3-1~exp1~20240731145144.92",
   "llvm-18": "1:18.1.8~++20240731025043+3b5b5c1ec4a3-1~exp1~20240731145144.92",
-  "mull-18": "0.26.1"
+  "mull-18": "0.27.1"
 }