diff --git a/src/main.h b/src/main.h
index e7fdb74597..53598d1cee 100644
--- a/src/main.h
+++ b/src/main.h
@@ -64,11 +64,11 @@ static const int64_t ORPHAN_TX_EXPIRE_INTERVAL = 5 * 60;
 /** Default for -limitancestorcount, max number of in-mempool ancestors */
 static const unsigned int DEFAULT_ANCESTOR_LIMIT = 25;
 /** Default for -limitancestorsize, maximum kilobytes of tx + all in-mempool ancestors */
-static const unsigned int DEFAULT_ANCESTOR_SIZE_LIMIT = 101;
+static const unsigned int DEFAULT_ANCESTOR_SIZE_LIMIT = 375;
 /** Default for -limitdescendantcount, max number of in-mempool descendants */
 static const unsigned int DEFAULT_DESCENDANT_LIMIT = 25;
 /** Default for -limitdescendantsize, maximum kilobytes of in-mempool descendants */
-static const unsigned int DEFAULT_DESCENDANT_SIZE_LIMIT = 101;
+static const unsigned int DEFAULT_DESCENDANT_SIZE_LIMIT = 375;
 /** Default for -mempoolexpiry, expiration time for mempool transactions in hours */
 static const unsigned int DEFAULT_MEMPOOL_EXPIRY = 72;
 /** The maximum size of a blk?????.dat file (since 0.8) */