diff --git a/juniper_codegen/Cargo.toml b/juniper_codegen/Cargo.toml
index 8d53b2207..0232ccd56 100644
--- a/juniper_codegen/Cargo.toml
+++ b/juniper_codegen/Cargo.toml
@@ -25,7 +25,7 @@ proc-macro = true
 derive_more = { version = "2.0", features = ["as_ref", "deref", "display"] }
 proc-macro2 = "1.0.4"
 quote = "1.0.9"
-syn = { version = "2.0", features = ["extra-traits", "full", "visit", "visit-mut"] }
+syn = { version = "3.0", features = ["extra-traits", "full", "visit", "visit-mut"] }
 url = "2.0"
 
 [dev-dependencies]