diff --git a/Cargo.toml b/Cargo.toml
index e7f6f07..e830164 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -42,8 +42,6 @@ serde = { version = "1.0.196", features = ["derive"] }
 serde_json = "1.0.113"
 strip-ansi-escapes = "0.2.0"
 
-[build-dependencies]
-rustc_version = "0.2"
 
 [features]
 default = ["derive", "std"]
diff --git a/build.rs b/build.rs
index 296a4eb..23e7655 100644
--- a/build.rs
+++ b/build.rs
@@ -1,15 +1,8 @@
-use rustc_version::{version_meta, Channel};
-
 fn main() {
-    if let Channel::Nightly = version_meta().unwrap().channel {
-        println!("cargo:rustc-cfg=nightly")
-    }
-
     // track_caller is stable since Rust 1.46 (2020), so no version check needed
     println!("cargo:rustc-cfg=track_caller");
 
     // Add check-cfg for conditional configurations
     println!("cargo:rustc-check-cfg=cfg(doc_cfg)");
     println!("cargo:rustc-check-cfg=cfg(track_caller)");
-    println!("cargo:rustc-check-cfg=cfg(nightly)");
 }