diff --git a/src/wikiq/__init__.py b/src/wikiq/__init__.py
index 1ba9bb7..e325678 100755
--- a/src/wikiq/__init__.py
+++ b/src/wikiq/__init__.py
@@ -493,9 +493,9 @@ class WikiqParser:
                     num_context_lines=1000000,
                     max_word_level_diff_complexity=-1,
                     moved_paragraph_detection_cutoff=-1,
-                    words_cache_capacity=5000,
-                    diff_cache_capacity=5000,
-                    stats_cache_capacity=50000,
+                    words_cache_capacity=2500,
+                    diff_cache_capacity=2500,
+                    stats_cache_capacity=2500,
                 )
 
             while not on_last_batch: