diff --git a/dash/src/lib.rs b/dash/src/lib.rs
index 665066659..acede2da6 100644
--- a/dash/src/lib.rs
+++ b/dash/src/lib.rs
@@ -116,6 +116,7 @@ pub mod string;
 pub mod taproot;
 pub mod util;
 
+#[cfg(feature = "serde")]
 use std::error::Error as StdError;
 
 pub use std::io;
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 1a2165581..32c68eec1 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,3 +1,3 @@
 [toolchain]
-channel = "1.92.0"
+channel = "1.94.1"
 components = ["rustfmt", "clippy"]