diff --git a/other/experiments/alchemi/afir_molecule_surface_alchemi/relax_under_afir_force_alchemi/requirements.txt b/other/experiments/alchemi/afir_molecule_surface_alchemi/relax_under_afir_force_alchemi/requirements.txt
index 0c4b31ef5..3b3e25582 100644
--- a/other/experiments/alchemi/afir_molecule_surface_alchemi/relax_under_afir_force_alchemi/requirements.txt
+++ b/other/experiments/alchemi/afir_molecule_surface_alchemi/relax_under_afir_force_alchemi/requirements.txt
@@ -2,7 +2,7 @@
 --find-links https://download.pytorch.org/whl/cu128/torchvision/
 --find-links https://download.pytorch.org/whl/cu128/torchaudio/
 --find-links https://github.com/NVIDIA/warp/releases/expanded_assets/v1.18.0
-torch==2.11.0+cu128
+torch==2.13.0
 torchvision==0.26.0+cu128
 torchaudio==2.11.0+cu128
 warp-lang==1.18.0+cu12