diff --git a/Cargo.toml b/Cargo.toml
index 8e927bf..560afb4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,4 +1,5 @@
 [workspace]
+resolver = "2"
 members = [
     "perlmod",
     "perlmod-macro",