diff --git a/Cargo.lock b/Cargo.lock
index 03ac5724..95e37735 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -45,7 +45,7 @@ dependencies = [
  "ident_case",
  "proc-macro2",
  "quote",
- "syn 1.0.109",
+ "syn 2.0.79",
  "synstructure",
 ]
 
diff --git a/derive/Cargo.toml b/derive/Cargo.toml
index 28c3a91a..d69a89dc 100644
--- a/derive/Cargo.toml
+++ b/derive/Cargo.toml
@@ -17,7 +17,7 @@ proc-macro = true
 ident_case = "1"
 proc-macro2 = "1"
 quote = "1"
-syn = "1"
+syn = "2"
 synstructure = "0.12"
 
 [package.metadata.docs.rs]