diff --git a/CU-MG/input-data/zpf/CU-MG-ZPF-CUMG2-HCP_A3-Jones1931.json b/CU-MG/input-data/zpf/CU-MG-ZPF-CUMG2-HCP_A3-Jones1931.json
index b50d036..e42e52d 100644
--- a/CU-MG/input-data/zpf/CU-MG-ZPF-CUMG2-HCP_A3-Jones1931.json
+++ b/CU-MG/input-data/zpf/CU-MG-ZPF-CUMG2-HCP_A3-Jones1931.json
@@ -13,6 +13,7 @@
 	[["HCP_A3", ["CU"], [0.001134]], ["CUMG2", ["MG"], [null]]]
     ],
     "reference": "Jones1931",
-    "comment": "Interpolated composition from Table 6"
+    "comment": "Interpolated composition from Table 6",
+    "weight": 10.0
 }
 
diff --git a/CU-MG/input-data/zpf/CU-MG-ZPF-LAVES_C15-LIQUID-Bagnoud1978.json b/CU-MG/input-data/zpf/CU-MG-ZPF-LAVES_C15-LIQUID-Bagnoud1978.json
index 81f0b48..ec726a1 100755
--- a/CU-MG/input-data/zpf/CU-MG-ZPF-LAVES_C15-LIQUID-Bagnoud1978.json
+++ b/CU-MG/input-data/zpf/CU-MG-ZPF-LAVES_C15-LIQUID-Bagnoud1978.json
@@ -28,5 +28,6 @@
         [["LIQUID", ["MG"], [0.35718]], ["LAVES_C15", ["MG"],  [null]]],
         [["LIQUID", ["MG"], [0.36806]], ["LAVES_C15", ["MG"],  [null]]]
     ],
-    "reference": "Bagnoud1978"
+    "reference": "Bagnoud1978",
+    "weight": 5.0
 }