diff --git a/agb-image-converter/Cargo.toml b/agb-image-converter/Cargo.toml
index 874c91ef..af2be039 100644
--- a/agb-image-converter/Cargo.toml
+++ b/agb-image-converter/Cargo.toml
@@ -14,7 +14,7 @@ proc-macro = true
 image = { version = "0.23", default-features = false, features = [ "png", "bmp" ] }
 toml = "0.5"
 serde = { version = "1", features = ["derive"] }
-syn = { version = "1", features = ["full"] }
+syn = { version = "2", features = ["full"] }
 proc-macro2 = "1"
 quote = "1"
 asefile = "0.3.5"
diff --git a/agb-macros/Cargo.toml b/agb-macros/Cargo.toml
index f7c8c167..bb2556a4 100644
--- a/agb-macros/Cargo.toml
+++ b/agb-macros/Cargo.toml
@@ -11,6 +11,6 @@ repository = "https://github.com/agbrs/agb"
 proc-macro = true
 
 [dependencies]
-syn = { version = "1", features = ["full", "extra-traits"] }
+syn = { version = "2", features = ["full", "extra-traits"] }
 proc-macro2 = "1"
 quote = "1"
diff --git a/agb-sound-converter/Cargo.toml b/agb-sound-converter/Cargo.toml
index 147f4c2c..997f0755 100644
--- a/agb-sound-converter/Cargo.toml
+++ b/agb-sound-converter/Cargo.toml
@@ -20,6 +20,6 @@ proc-macro = true
 
 [dependencies]
 hound = "3.5"
-syn = "1"
+syn = "2"
 proc-macro2 = "1"
 quote = "1"