diff --git a/build.rs b/build.rs
index 249d133..1a06e45 100644
--- a/build.rs
+++ b/build.rs
@@ -5,15 +5,10 @@ use std::str;
 fn main() {
     println!("cargo:rerun-if-changed=build.rs");
 
-    let version = match rustc_version() {
+    let _version = match rustc_version() {
         Some(version) => version,
         None => return,
     };
-
-    if version.minor < 53 {
-        // https://github.com/rust-lang/rust/issues/43081
-        println!("cargo:rustc-cfg=needs_invalid_span_workaround");
-    }
 }
 
 struct RustcVersion {
diff --git a/src/spanned.rs b/src/spanned.rs
index efc2e8b..6eba644 100644
--- a/src/spanned.rs
+++ b/src/spanned.rs
@@ -26,20 +26,8 @@ impl<T: ?Sized + ToTokens> Spanned for T {
 }
 
 fn join_spans(tokens: TokenStream) -> Span {
-    #[cfg(not(needs_invalid_span_workaround))]
     let mut iter = tokens.into_iter().map(|tt| tt.span());
 
-    #[cfg(needs_invalid_span_workaround)]
-    let mut iter = tokens.into_iter().filter_map(|tt| {
-        let span = tt.span();
-        let debug = format!("{:?}", span);
-        if debug.ends_with("bytes(0..0)") {
-            None
-        } else {
-            Some(span)
-        }
-    });
-
     let first = match iter.next() {
         Some(span) => span,
         None => return Span::call_site(),