diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 45caf140..a95d1b8f 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,3 +1,3 @@
 [toolchain]
-channel = "stable"
+channel = "1.90"
 components = ["clippy", "rustfmt" ]