diff --git a/sailfish-compiler/Cargo.toml b/sailfish-compiler/Cargo.toml
index 1e6a69c..89b1e5d 100644
--- a/sailfish-compiler/Cargo.toml
+++ b/sailfish-compiler/Cargo.toml
@@ -35,7 +35,7 @@ default-features = false
 features = ["parsing", "full", "visit-mut", "printing"]
 
 [dependencies.proc-macro2]
-version = ">=1.0.11, <=1.0.43"
+version = ">=1.0.11, <1.1.0"
 default-features = false
 features = ["span-locations"]