diff --git a/Cargo.lock b/Cargo.lock
index 8a440df84..deeb4e974 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4070,7 +4070,7 @@ dependencies = [
  "sha1",
  "sha2",
  "sprintf",
- "thiserror 1.0.69",
+ "thiserror 2.0.9",
  "tokio",
  "tracing",
  "urlencoding",
@@ -5643,9 +5643,9 @@ dependencies = [
 
 [[package]]
 name = "serde_with"
-version = "3.11.0"
+version = "3.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e28bdad6db2b8340e449f7108f020b3b092e8583a9e3fb82713e1d4e71fe817"
+checksum = "d6b6f7f2fcb69f747921f79f3926bd1e203fce4fef62c268dd3abfb6d86029aa"
 dependencies = [
  "base64 0.22.1",
  "chrono",
@@ -5661,9 +5661,9 @@ dependencies = [
 
 [[package]]
 name = "serde_with_macros"
-version = "3.11.0"
+version = "3.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9d846214a9854ef724f3da161b426242d8de7c1fc7de2f89bb1efcb154dca79d"
+checksum = "8d00caa5193a3c8362ac2b73be6b9e768aa5a4b2f721d8f4b339600c3cb51f8e"
 dependencies = [
  "darling",
  "proc-macro2",
diff --git a/crates/axum-utils/Cargo.toml b/crates/axum-utils/Cargo.toml
index 24e679314..a2b70c003 100644
--- a/crates/axum-utils/Cargo.toml
+++ b/crates/axum-utils/Cargo.toml
@@ -30,7 +30,7 @@ rand.workspace = true
 reqwest.workspace = true
 sentry.workspace = true
 serde.workspace = true
-serde_with = "3.11.0"
+serde_with = "3.12.0"
 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 fdc0aec31..6bba7a6a4 100644
--- a/crates/config/Cargo.toml
+++ b/crates/config/Cargo.toml
@@ -28,7 +28,7 @@ ulid.workspace = true
 url.workspace = true
 
 serde.workspace = true
-serde_with = { version = "3.11.0", features = ["hex", "chrono"] }
+serde_with = { version = "3.12.0", 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 5070b665b..c51db752e 100644
--- a/crates/handlers/Cargo.toml
+++ b/crates/handlers/Cargo.toml
@@ -52,7 +52,7 @@ sqlx.workspace = true
 
 # Various structure (de)serialization
 serde.workspace = true
-serde_with = { version = "3.11.0", features = ["hex", "chrono"] }
+serde_with = { version = "3.12.0", 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 fc84102a9..6b1773580 100644
--- a/crates/jose/Cargo.toml
+++ b/crates/jose/Cargo.toml
@@ -28,7 +28,7 @@ schemars.workspace = true
 sec1 = "0.7.3"
 serde.workspace = true
 serde_json.workspace = true
-serde_with = "3.11.0"
+serde_with = "3.12.0"
 sha2 = { version = "0.10.8", features = ["oid"] }
 signature = "2.2.0"
 thiserror.workspace = true
diff --git a/crates/oauth2-types/Cargo.toml b/crates/oauth2-types/Cargo.toml
index c8d21bbff..256eb814f 100644
--- a/crates/oauth2-types/Cargo.toml
+++ b/crates/oauth2-types/Cargo.toml
@@ -17,7 +17,7 @@ serde.workspace = true
 serde_json.workspace = true
 language-tags = { version = "0.3.2", features = ["serde"] }
 url.workspace = true
-serde_with = { version = "3.11.0", features = ["chrono"] }
+serde_with = { version = "3.12.0", features = ["chrono"] }
 chrono.workspace = true
 sha2 = "0.10.8"
 data-encoding = "2.6.0"