diff --git a/bin/predict.py b/bin/predict.py
index cf73a50d2..edf61de0c 100644
--- a/bin/predict.py
+++ b/bin/predict.py
@@ -276,6 +276,8 @@ def main(
         output_filepath = output_dirpath / f"predictions-{shortuuid.uuid()}.nc"
 
         logger.info(f"Saving samples to {output_filepath}...")
+        for varname in xr_samples.data_vars:
+            xr_samples[varname].encoding.update(zlib=True, complevel=5)
         xr_samples.to_netcdf(output_filepath)