diff --git a/.github/workflows/integration_test.yml b/.github/workflows/integration_test.yml
index 6f5fcea2..955e5d40 100644
--- a/.github/workflows/integration_test.yml
+++ b/.github/workflows/integration_test.yml
@@ -155,7 +155,7 @@ jobs:
           # pyproject.toml pins xllamacpp to the cu128 wheel, which needs libcuda.so.1 at import
           # time. The CI runner has no NVIDIA driver, so we swap in the PyPI CPU build for tests.
           # see https://github.com/nextcloud/llm2/blob/d1c5604d75d008359937fcb16f1d82e1f421a87c/.github/workflows/integration_test.yml#L133-L135
-          poetry run pip install --force-reinstall --no-deps xllamacpp
+          poetry run pip install --force-reinstall --no-deps xllamacpp==2026.9.10809
 
       - name: Cache llm2 models
         uses: actions/cache/restore@v6