diff --git a/Cargo.toml b/Cargo.toml
index 0c8d7aca3..c63e13309 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,6 +8,7 @@ members = [
     "crates/voicevox_core_python_api",
     "crates/xtask"
 ]
+resolver = "2"
 
 [workspace.dependencies]
 anyhow = "1.0.65"