diff --git a/scripts/geodata/polygons/reverse_geocode.py b/scripts/geodata/polygons/reverse_geocode.py
index 86559547..d9b54dfe 100644
--- a/scripts/geodata/polygons/reverse_geocode.py
+++ b/scripts/geodata/polygons/reverse_geocode.py
@@ -285,7 +285,7 @@ class OSMReverseGeocoder(RTreePolygonIndex):
 
     persistent_polygons = True
     # Cache almost everything
-    cache_size = 1000000
+    cache_size = 250000
     simplify_polygons = False
 
     include_property_patterns = set([