diff --git a/Project.toml b/Project.toml
index 17a7fdf..5fbfb7a 100644
--- a/Project.toml
+++ b/Project.toml
@@ -14,6 +14,7 @@ Printf = "de0858da-6303-5e67-8744-51eddeeeb8d7"
 NetCDF = "^0.8"
 Parameters = "^0.12"
 julia = "1"
+Interpolations = "^0.12"
 
 [extras]
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"