diff --git a/examples/config/phase/mechanical/elastic/Hooke_Sn-beta.yaml b/examples/config/phase/mechanical/elastic/Hooke_Sn-beta.yaml
index a49c246f9..57cd2913c 100644
--- a/examples/config/phase/mechanical/elastic/Hooke_Sn-beta.yaml
+++ b/examples/config/phase/mechanical/elastic/Hooke_Sn-beta.yaml
@@ -4,7 +4,7 @@ references:
   - J.A. Rayne and B.S. Chandrasekhar,
     Physical Review 120(5):1658-1663, 1960,
     https://doi.org/10.1103/PhysRev.120.1658,
-    fit to Fig. 2 and Tab. IV (C_13)
+    fit to Fig. 2 (T_min=40K, T_max=300K) and Tab. IV (C_13, T_min=77K, T_max=300K)
 
 C_11: 72.89e+9
 C_11,T: -4.479e+7
@@ -14,9 +14,8 @@ C_12: 59.27e+9
 C_12,T: 1.110e+7
 C_12,T^2: 1.300e+4
 
-C_13: 35.97e+9
-C_13,T: -2.638e+7
-C_13,T^2: -1.123e+5
+C_13: 35.80e+9
+C_13,T: -2.870e+6
 
 C_33: 88.77e+10
 C_33,T: -5.361e+7