--- a/Cargo.toml
+++ b/Cargo.toml
@@ -37,13 +37,13 @@ path = "src/lib.rs"
 proc-macro = true
 
 [dependencies.proc-macro2]
-version = "1.0.95"
+version = ">= 1.0.90"
 
 [dependencies.quote]
 version = "1.0.40"
 
 [dependencies.syn]
-version = "2.0.104"
+version = ">= 2.0.90"
 
 [lints.clippy]
 explicit_iter_loop = "warn"
