diff --git a/minerva/athena.py b/minerva/athena.py
index b64b093..b919848 100644
--- a/minerva/athena.py
+++ b/minerva/athena.py
@@ -108,7 +108,7 @@ class Query(Execute):
                               "results",
                               str(random.random()))
         query  = f"unload ({self.sql}) to {repr(out)} " + \
-                 f"with (format = '{self.format}')"
+                 f"with (format = '{self.format}', compression ='zstd', compression_level = 4)"
         return query