diff --git a/.cargo/config.toml b/.cargo/config.toml
index 046dc34..26730bb 100644
--- a/.cargo/config.toml
+++ b/.cargo/config.toml
@@ -6,4 +6,3 @@ runner = "./uno-runner.sh"
 
 [unstable]
 build-std = ["core"]
-build-std-features = ["compiler-builtins-mangled-names"]
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index c6829a9..682b2d9 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,4 +1,4 @@
 [toolchain]
-channel = "nightly-2022-05-10"
+channel = "nightly-2023-08-08"
 profile = "minimal"
 components = ["rustfmt", "rust-src"]
\ No newline at end of file