diff --git a/consensus/core/src/config/constants.rs b/consensus/core/src/config/constants.rs
index bab5f8a32..0c021c99d 100644
--- a/consensus/core/src/config/constants.rs
+++ b/consensus/core/src/config/constants.rs
@@ -113,7 +113,7 @@ pub mod perf {
     use crate::config::params::Params;
 
     /// The default target depth for reachability reindexes.
-    pub const DEFAULT_REINDEX_DEPTH: u64 = 1000;
+    pub const DEFAULT_REINDEX_DEPTH: u64 = 100;
 
     /// The default slack interval used by the reachability
     /// algorithm to encounter for blocks out of the selected chain.