diff --git a/src/uci.cpp b/src/uci.cpp
index 4b8e8b7f5..500e88184 100644
--- a/src/uci.cpp
+++ b/src/uci.cpp
@@ -513,8 +513,8 @@ WinRateParams win_rate_params(const Position& pos) {
     double m = std::clamp(material, 17, 78) / 58.0;
 
     // Return a = p_a(material) and b = p_b(material), see github.com/official-stockfish/WDL_model
-    constexpr double as[] = {-37.45051876, 121.19101539, -132.78783573, 420.70576692};
-    constexpr double bs[] = {90.26261072, -137.26549898, 71.10130540, 51.35259597};
+    constexpr double as[] = {-13.50030198, 40.92780883, -36.82753545, 386.83004070};
+    constexpr double bs[] = {96.53354896, -165.79058388, 90.89679019, 49.29561889};
 
     double a = (((as[0] * m + as[1]) * m + as[2]) * m) + as[3];
     double b = (((bs[0] * m + bs[1]) * m + bs[2]) * m) + bs[3];