diff --git a/backend/cpp/bonsai/Makefile b/backend/cpp/bonsai/Makefile
index b3471e4ae..578643e29 100644
--- a/backend/cpp/bonsai/Makefile
+++ b/backend/cpp/bonsai/Makefile
@@ -1,7 +1,7 @@
 
 # Pinned to the HEAD of the `prism` branch on https://github.com/PrismML-Eng/llama.cpp.
 # Auto-bumped nightly by .github/workflows/bump_deps.yaml.
-BONSAI_VERSION?=2459f68b5c0eb26261fd5a81682004b93cd645ba
+BONSAI_VERSION?=6bfcd79a2d426abcd2b50e3c2d09ae2225e70a17
 LLAMA_REPO?=https://github.com/PrismML-Eng/llama.cpp
 
 CMAKE_ARGS?=