diff --git a/backend/cpp/turboquant/Makefile b/backend/cpp/turboquant/Makefile
index 5ec20b86a..162d09fd1 100644
--- a/backend/cpp/turboquant/Makefile
+++ b/backend/cpp/turboquant/Makefile
@@ -1,7 +1,7 @@
 
 # Pinned to the HEAD of feature/turboquant-kv-cache on https://github.com/TheTom/llama-cpp-turboquant.
 # Auto-bumped nightly by .github/workflows/bump_deps.yaml.
-TURBOQUANT_VERSION?=c26cbdffcf6fc9b7430cd6b117757e9a3f70b7ea
+TURBOQUANT_VERSION?=8a891f4b566efdbd3cea92fafee3227a0a267683
 LLAMA_REPO?=https://github.com/TheTom/llama-cpp-turboquant
 
 CMAKE_ARGS?=