diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 5f80075c9..8f377b93f 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,5 +1,5 @@
 [toolchain]
-channel = "1.66.0"
+channel = "1.66.1"
 components = ["rustfmt", "clippy"]
 targets = [
     "aarch64-apple-ios",