diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index f9af1a4..eb6385b 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,4 +1,4 @@
 [toolchain]
-channel = "1.66"
+channel = "1.70.0"
 components = [ "rustfmt", "clippy" ]
 profile = "minimal"