diff --git a/pyproject.toml b/pyproject.toml
index 0fd79de..59b30cf 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,7 +15,7 @@ classifiers = [
     "Operating System :: OS Independent",
 ]
 dependencies = [
-  "polars", "pyarrow", "loguru", "hydra-core", "numpy", "scipy<1.14.0", "pandas", "tqdm", "xgboost",
+  "polars", "pyarrow", "loguru", "hydra-core==1.3.2", "numpy", "scipy<1.14.0", "pandas", "tqdm", "xgboost",
   "scikit-learn", "hydra-optuna-sweeper", "hydra-joblib-launcher", "ml-mixins", "meds==0.3.3", "meds-transforms==0.0.7",
 ]