diff --git a/Project.toml b/Project.toml
index 6459a53a..e917eb2c 100644
--- a/Project.toml
+++ b/Project.toml
@@ -13,6 +13,7 @@ SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [compat]
+CEnum = "^0.4"
 DocStringExtensions = "^0.8"
 julia = "^1"