diff --git a/libstackerdb/src/libstackerdb.rs b/libstackerdb/src/libstackerdb.rs
index d4ae0740b..df74075f6 100644
--- a/libstackerdb/src/libstackerdb.rs
+++ b/libstackerdb/src/libstackerdb.rs
@@ -33,8 +33,8 @@ use stacks_common::types::PrivateKey;
 use stacks_common::util::hash::{hex_bytes, to_hex, Hash160, Sha512Trunc256Sum};
 use stacks_common::util::secp256k1::MessageSignature;
 
-/// maximum chunk size (1 MB)
-pub const STACKERDB_MAX_CHUNK_SIZE: u32 = 1024 * 1024;
+/// maximum chunk size (16 MB; same as MAX_PAYLOAD_SIZE)
+pub const STACKERDB_MAX_CHUNK_SIZE: u32 = 16 * 1024 * 1024;
 
 #[cfg(test)]
 mod tests;