diff --git a/src/search.cpp b/src/search.cpp
index fab0fd617..a6a189fca 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -1962,12 +1962,14 @@ void update_quiet_histories(
     workerThread.mainHistory[us][move.from_to()] << bonus;  // Untuned to prevent duplicate effort
 
     if (ss->ply < LOW_PLY_HISTORY_SIZE)
-        workerThread.lowPlyHistory[ss->ply][move.from_to()] << bonus * 829 / 1024;
+        workerThread.lowPlyHistory[ss->ply][move.from_to()] << bonus * 800 / 1024;
 
-    update_continuation_histories(ss, pos.moved_piece(move), move.to_sq(), bonus * 1004 / 1024);
+    update_continuation_histories(ss, pos.moved_piece(move), move.to_sq(),
+                                  bonus * (bonus > 0 ? 1094 : 790) / 1024);
 
     int pIndex = pawn_structure_index(pos);
-    workerThread.pawnHistory[pIndex][pos.moved_piece(move)][move.to_sq()] << bonus * 587 / 1024;
+    workerThread.pawnHistory[pIndex][pos.moved_piece(move)][move.to_sq()]
+      << bonus * (bonus > 0 ? 725 : 460) / 1024;
 }
 
 }