diff --git a/pyproject.toml b/pyproject.toml
index 48867700..cc7d96c7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,7 +44,7 @@ dependencies = [
     # Replaces `pytorch_lightning` w/ `lightning.pytorch` to adress
     # https://github.com/Lightning-AI/pytorch-lightning/issues/17485
     # Also loops while an epoch is not done syncing.
-    "h5py==3.11.0", # HDF5 file format load/save
+    "h5py==3.12.1", # HDF5 file format load/save
     "opencv-python==4.10.0.84", # Image processing
     # MANDATORY for cneuromax/fitting/deeplearning/
     "lightning==2.4.0", # PyTorch wrapper to decrease boilerplate