diff --git a/Cargo.lock b/Cargo.lock
index ad6c033..0aab3fc 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -222,7 +222,7 @@ dependencies = [
  "graphql_client_codegen",
  "proc-macro2",
  "quote",
- "syn 1.0.109",
+ "syn 2.0.85",
 ]
 
 [[package]]
diff --git a/shopify_function_macro/Cargo.toml b/shopify_function_macro/Cargo.toml
index 951e2ad..2942345 100644
--- a/shopify_function_macro/Cargo.toml
+++ b/shopify_function_macro/Cargo.toml
@@ -10,7 +10,7 @@ description = "Macros for the `shopify_function` crate."
 proc-macro = true
 
 [dependencies]
-syn = { version = "1.0", features = ["full"] }
+syn = { version = "2.0", features = ["full"] }
 quote = "1.0"
 proc-macro2 = "1.0.92"
 convert_case = "0.6.0"