diff --git a/Project.toml b/Project.toml
index c489aee..8610525 100644
--- a/Project.toml
+++ b/Project.toml
@@ -30,6 +30,7 @@ MeshIO = "0.4"
 Meshing = "0.5"
 NearestNeighbors = "0.4"
 Requires = "1.0"
+SHA = "0.7"
 Zygote = "0.5, 0.6"
 julia = "1.6"