diff --git a/Cargo.toml b/Cargo.toml
index 23ed093..76e68e3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -113,7 +113,7 @@ anyhow = "1"
 
 # serialization
 serde = { version = "1", features = ["serde_derive"] }
-serde_with = { version = "3.3", features = ["base64"] }
+serde_with = { version = "3.4", features = ["base64"] }
 serde_json = "1"
 
 # other dependencies