diff --git a/maud_macros/Cargo.toml b/maud_macros/Cargo.toml
index 4a3ce8e4..0117e227 100644
--- a/maud_macros/Cargo.toml
+++ b/maud_macros/Cargo.toml
@@ -14,7 +14,7 @@ edition = "2018"
 syn = "1.0.8"
 maud_htmlescape = { version = "0.17.0", path = "../maud_htmlescape" }
 quote = "1.0.7"
-proc-macro2 = "1.0.18"
+proc-macro2 = "1.0.19"
 proc-macro-error = "1.0.0"
 
 [lib]
diff --git a/maud_macros/src/lib.rs b/maud_macros/src/lib.rs
index c5565b2e..f50c7191 100644
--- a/maud_macros/src/lib.rs
+++ b/maud_macros/src/lib.rs
@@ -9,7 +9,7 @@ mod ast;
 mod generate;
 mod parse;
 
-use proc_macro2::{Ident, TokenStream, TokenTree};
+use proc_macro2::{Ident, Span, TokenStream, TokenTree};
 use proc_macro_error::proc_macro_error;
 use quote::quote;
 
@@ -28,10 +28,9 @@ pub fn html_debug(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
 }
 
 fn expand(input: TokenStream) -> TokenStream {
-    // TODO: call `proc_macro2::Span::mixed_site()` directly when Rust 1.45 is stable
     let output_ident = TokenTree::Ident(Ident::new(
         "__maud_output",
-        proc_macro::Span::mixed_site().into(),
+        Span::mixed_site(),
     ));
     // Heuristic: the size of the resulting markup tends to correlate with the
     // code size of the template itself