diff --git a/src/mito2/src/cache.rs b/src/mito2/src/cache.rs
index a059c4ee7894..f65462298d79 100644
--- a/src/mito2/src/cache.rs
+++ b/src/mito2/src/cache.rs
@@ -55,7 +55,7 @@ const FILE_TYPE: &str = "file";
 const SELECTOR_RESULT_TYPE: &str = "selector_result";
 
 /// Page size for cache. Currently only used for inverted index cache.
-const PAGE_SIZE: usize = 8192 * 1024; // 8MB
+const PAGE_SIZE: usize = 4096 * 1024 * 1024; // 4MB
 
 /// Manages cached data for the engine.
 ///