diff --git a/ci/test/01_base_install.sh b/ci/test/01_base_install.sh
index 98f96f0ece6..fd60e512582 100755
--- a/ci/test/01_base_install.sh
+++ b/ci/test/01_base_install.sh
@@ -44,7 +44,7 @@ fi
 if [[ ${USE_MEMORY_SANITIZER} == "true" ]]; then
   update-alternatives --install /usr/bin/clang++ clang++ "$(which clang++-16)" 100
   update-alternatives --install /usr/bin/clang clang "$(which clang-16)" 100
-  git clone --depth=1 https://github.com/llvm/llvm-project -b llvmorg-16.0.1 "${BASE_SCRATCH_DIR}"/msan/llvm-project
+  git clone --depth=1 https://github.com/llvm/llvm-project -b llvmorg-16.0.4 "${BASE_SCRATCH_DIR}"/msan/llvm-project
   cmake -B "${BASE_SCRATCH_DIR}"/msan/build/ -DLLVM_ENABLE_RUNTIMES='libcxx;libcxxabi' -DCMAKE_BUILD_TYPE=Release -DLLVM_USE_SANITIZER=MemoryWithOrigins -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ -DLLVM_TARGETS_TO_BUILD=X86 -DLLVM_ENABLE_PER_TARGET_RUNTIME_DIR=OFF -DLIBCXX_ENABLE_DEBUG_MODE=ON -DLIBCXX_ENABLE_ASSERTIONS=ON -S "${BASE_SCRATCH_DIR}"/msan/llvm-project/runtimes
   make -C "${BASE_SCRATCH_DIR}"/msan/build/ "$MAKEJOBS"
 fi