diff --git a/Project.toml b/Project.toml
index 0f01f8982..2d6d78247 100644
--- a/Project.toml
+++ b/Project.toml
@@ -79,7 +79,7 @@ SeawaterPolynomials = "0.3.5"
 SpeedyWeather = "0.17.4"
 StaticArrays = "1"
 Statistics = "<0.0.1, 1"
-Thermodynamics = "0.15.3"
+Thermodynamics = "0.15.3, 1"
 WorldOceanAtlasTools = "0.6"
 XESMF = "0.1.6"
 ZipFile = "0.10"