diff --git a/Cargo.toml b/Cargo.toml
index 2d93727..c8af6fb 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,3 +3,4 @@ members = [
     "micronfig",
     "micronfig_macros",
 ]
+resolver = "2"