diff --git a/saphir_cli/Cargo.toml b/saphir_cli/Cargo.toml
index 9380abb..1596808 100644
--- a/saphir_cli/Cargo.toml
+++ b/saphir_cli/Cargo.toml
@@ -17,7 +17,7 @@ name = "saphir"
 path = "src/main.rs"
 
 [dependencies]
-syn = { version = "1.0", features = ["full", "extra-traits"] }
+syn = { version = "2.0", features = ["full", "extra-traits"] }
 clap = { version = "4.0", features = ["derive"] }
 serde = "1.0"
 serde_derive = "1.0"
diff --git a/saphir_macro/Cargo.toml b/saphir_macro/Cargo.toml
index 14b145e..0852a23 100644
--- a/saphir_macro/Cargo.toml
+++ b/saphir_macro/Cargo.toml
@@ -25,5 +25,5 @@ tracing-instrument = []
 [dependencies]
 proc-macro2 = "1.0"
 quote = "1.0"
-syn = { version = "1.0", features = ["full", "extra-traits"] }
+syn = { version = "2.0", features = ["full", "extra-traits"] }
 http = "0.2"