diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index ff100ed..d72668b 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,2 +1,2 @@
 [toolchain]
-channel = "1.90.0"
+channel = "1.91.0"