diff --git a/valibuk_core/Cargo.toml b/valibuk_core/Cargo.toml
index 81a1646..e5e2a2a 100644
--- a/valibuk_core/Cargo.toml
+++ b/valibuk_core/Cargo.toml
@@ -13,7 +13,7 @@ license = "MIT OR Apache-2.0"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-syn = { version = "1", features = ["extra-traits", "full", "fold"] }
+syn = { version = "2", features = ["extra-traits", "full", "fold"] }
 quote = "1"
 proc-macro2 = "1"
 proc-macro-error = "1"
diff --git a/valibuk_derive/Cargo.toml b/valibuk_derive/Cargo.toml
index d728819..ae53fd0 100644
--- a/valibuk_derive/Cargo.toml
+++ b/valibuk_derive/Cargo.toml
@@ -15,7 +15,7 @@ proc-macro = true
 
 [dependencies]
 valibuk_core = { version = "0.2.0", path = "../valibuk_core"}
-syn = { version = "1", features = ["full", "extra-traits", "fold"] }
+syn = { version = "2", features = ["full", "extra-traits", "fold"] }
 quote = "1"
 proc-macro2 = "1"
 proc-macro-error = "1"