diff --git a/Project.toml b/Project.toml
index 297172a..57dd636 100644
--- a/Project.toml
+++ b/Project.toml
@@ -17,5 +17,6 @@ AtomsBase = "0.3"
 JLD2 = "0.4"
 PotentialCalculation = "0.6"
 Reexport = "0.2, 1.0"
+SHA = "0.7"
 TOML = "1"
 julia = "1.6"