diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 057ac76..85eb17b 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,5 +1,5 @@
 [toolchain]
-channel = "1.90"
+channel = "1.91"
 components = [
   "rustc",
   "cargo",