diff --git a/src/adapt.js b/src/adapt.js
index e58c6c372..229b6afbc 100644
--- a/src/adapt.js
+++ b/src/adapt.js
@@ -44,9 +44,9 @@ export default function adapt (W1, W2, XYZ, options = {}) {
 		else if (env.W1 === WHITES.D50 && env.W2 === WHITES.D65) {
 
 			env.M = [
-				[ 0.947386632323667, 0.28196156725620036, -0.1708280666484637 ],
-				[ -0.7357288996314816, 1.6804471734451398, 0.035992069603406264 ],
-				[ 0.029218329379919382, -0.05145129980782719, 0.7733468362356041 ]
+				[ 0.955473421488075, -0.02309845494876471, 0.06325924320057072 ],
+				[ -0.0283697093338637, 1.0099953980813041, 0.021041441191917323 ],
+				[ 0.012314014864481998, -0.020507649298898964, 1.330365926242124 ]
 			];
 		}
 	}