diff --git a/Cargo.lock b/Cargo.lock
index 4f9918ee..7534dc9c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5090,9 +5090,9 @@ dependencies = [
 
 [[package]]
 name = "serde_with"
-version = "3.3.0"
+version = "3.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1ca3b16a3d82c4088f343b7480a93550b3eabe1a358569c2dfe38bbcead07237"
+checksum = "64cd236ccc1b7a29e7e2739f27c0b2dd199804abc4290e32f59f3b68d6405c23"
 dependencies = [
  "base64 0.21.4",
  "chrono",
@@ -5107,9 +5107,9 @@ dependencies = [
 
 [[package]]
 name = "serde_with_macros"
-version = "3.3.0"
+version = "3.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2e6be15c453eb305019bfa438b1593c731f36a289a7853f7707ee29e870b3b3c"
+checksum = "93634eb5f75a2323b16de4748022ac4297f9e76b6dced2be287a099f41b5e788"
 dependencies = [
  "darling 0.20.3",
  "proc-macro2",
diff --git a/crates/axum-utils/Cargo.toml b/crates/axum-utils/Cargo.toml
index a2041e48..a505a22c 100644
--- a/crates/axum-utils/Cargo.toml
+++ b/crates/axum-utils/Cargo.toml
@@ -22,7 +22,7 @@ mime = "0.3.17"
 rand.workspace = true
 sentry = { version = "0.31.7", default-features = false }
 serde.workspace = true
-serde_with = "3.3.0"
+serde_with = "3.4.0"
 serde_urlencoded = "0.7.1"
 serde_json.workspace = true
 thiserror.workspace = true
diff --git a/crates/config/Cargo.toml b/crates/config/Cargo.toml
index ab2444d5..32c0d331 100644
--- a/crates/config/Cargo.toml
+++ b/crates/config/Cargo.toml
@@ -24,7 +24,7 @@ ulid.workspace = true
 url.workspace = true
 
 serde.workspace = true
-serde_with = { version = "3.3.0", features = ["hex", "chrono"] }
+serde_with = { version = "3.4.0", features = ["hex", "chrono"] }
 serde_json.workspace = true
 
 pem-rfc7468 = "0.7.0"
diff --git a/crates/handlers/Cargo.toml b/crates/handlers/Cargo.toml
index 1b5016bc..9ac0ed65 100644
--- a/crates/handlers/Cargo.toml
+++ b/crates/handlers/Cargo.toml
@@ -40,7 +40,7 @@ sqlx = { version = "0.7.2", features = ["runtime-tokio-rustls", "postgres"] }
 
 # Various structure (de)serialization
 serde.workspace = true
-serde_with = { version = "3.3.0", features = ["hex", "chrono"] }
+serde_with = { version = "3.4.0", features = ["hex", "chrono"] }
 serde_json.workspace = true
 serde_urlencoded = "0.7.1"
 
diff --git a/crates/jose/Cargo.toml b/crates/jose/Cargo.toml
index 05ba75e7..cfacc7e3 100644
--- a/crates/jose/Cargo.toml
+++ b/crates/jose/Cargo.toml
@@ -24,7 +24,7 @@ schemars = "0.8.15"
 sec1 = "0.7.3"
 serde.workspace = true
 serde_json.workspace = true
-serde_with = "3.3.0"
+serde_with = "3.4.0"
 sha2 = { version = "0.10.8", features = ["oid"] }
 signature = "2.1.0"
 thiserror.workspace = true
diff --git a/crates/oauth2-types/Cargo.toml b/crates/oauth2-types/Cargo.toml
index 9edeec7a..b239a705 100644
--- a/crates/oauth2-types/Cargo.toml
+++ b/crates/oauth2-types/Cargo.toml
@@ -14,7 +14,7 @@ serde_json.workspace = true
 language-tags = { version = "0.3.2", features = ["serde"] }
 url.workspace = true
 parse-display = "0.8.2"
-serde_with = { version = "3.3.0", features = ["chrono"] }
+serde_with = { version = "3.4.0", features = ["chrono"] }
 chrono.workspace = true
 sha2 = "0.10.8"
 data-encoding = "2.4.0"
diff --git a/crates/oidc-client/Cargo.toml b/crates/oidc-client/Cargo.toml
index 4bd7f1af..5c29d8d7 100644
--- a/crates/oidc-client/Cargo.toml
+++ b/crates/oidc-client/Cargo.toml
@@ -35,7 +35,7 @@ rand.workspace = true
 serde.workspace = true
 serde_json.workspace = true
 serde_urlencoded = "0.7.1"
-serde_with = "3.3.0"
+serde_with = "3.4.0"
 thiserror.workspace = true
 tokio = { version = "1.33.0", features = ["rt", "macros", "rt-multi-thread"] }
 tower = { version = "0.4.13", features = ["full"] }