diff --git a/Cargo.lock b/Cargo.lock
index 6dd7c2c7e..8409e8f29 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -96,7 +96,7 @@ dependencies = [
  "cfg-if",
  "http",
  "indexmap 2.9.0",
- "schemars",
+ "schemars 0.8.22",
  "serde",
  "serde_json",
  "serde_qs",
@@ -2812,7 +2812,7 @@ version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bf466541e9d546596ee94f9f69590f89473455f88372423e0008fc1a7daf100e"
 dependencies = [
- "schemars",
+ "schemars 0.8.22",
  "serde",
 ]
 
@@ -3241,7 +3241,7 @@ dependencies = [
  "rand_chacha 0.3.1",
  "rustls-pemfile",
  "rustls-pki-types",
- "schemars",
+ "schemars 0.8.22",
  "serde",
  "serde_json",
  "serde_with",
@@ -3355,7 +3355,7 @@ dependencies = [
  "rand_chacha 0.3.1",
  "reqwest",
  "rustls",
- "schemars",
+ "schemars 0.8.22",
  "sentry",
  "serde",
  "serde_json",
@@ -3438,7 +3438,7 @@ dependencies = [
 name = "mas-iana"
 version = "0.17.0-rc.0"
 dependencies = [
- "schemars",
+ "schemars 0.8.22",
  "serde",
 ]
 
@@ -3477,7 +3477,7 @@ dependencies = [
  "rand 0.8.5",
  "rand_chacha 0.3.1",
  "rsa",
- "schemars",
+ "schemars 0.8.22",
  "sec1",
  "serde",
  "serde_json",
@@ -3613,7 +3613,7 @@ dependencies = [
  "mas-data-model",
  "oauth2-types",
  "opa-wasm",
- "schemars",
+ "schemars 0.8.22",
  "serde",
  "serde_json",
  "thiserror 2.0.12",
@@ -4970,6 +4970,26 @@ dependencies = [
  "bitflags",
 ]
 
+[[package]]
+name = "ref-cast"
+version = "1.0.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4a0ae411dbe946a674d89546582cea4ba2bb8defac896622d6496f14c23ba5cf"
+dependencies = [
+ "ref-cast-impl",
+]
+
+[[package]]
+name = "ref-cast-impl"
+version = "1.0.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1165225c21bff1f3bbce98f5a1f889949bc902d3575308cc7b0de30b4f6d27c7"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "regalloc2"
 version = "0.11.2"
@@ -5358,6 +5378,18 @@ dependencies = [
  "url",
 ]
 
+[[package]]
+name = "schemars"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4cd191f9397d57d581cddd31014772520aa448f65ef991055d7f61582c65165f"
+dependencies = [
+ "dyn-clone",
+ "ref-cast",
+ "serde",
+ "serde_json",
+]
+
 [[package]]
 name = "schemars_derive"
 version = "0.8.22"
@@ -5696,15 +5728,16 @@ dependencies = [
 
 [[package]]
 name = "serde_with"
-version = "3.12.0"
+version = "3.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d6b6f7f2fcb69f747921f79f3926bd1e203fce4fef62c268dd3abfb6d86029aa"
+checksum = "bf65a400f8f66fb7b0552869ad70157166676db75ed8181f8104ea91cf9d0b42"
 dependencies = [
  "base64",
  "chrono",
  "hex",
  "indexmap 1.9.3",
  "indexmap 2.9.0",
+ "schemars 0.9.0",
  "serde",
  "serde_derive",
  "serde_json",
@@ -5714,9 +5747,9 @@ dependencies = [
 
 [[package]]
 name = "serde_with_macros"
-version = "3.12.0"
+version = "3.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8d00caa5193a3c8362ac2b73be6b9e768aa5a4b2f721d8f4b339600c3cb51f8e"
+checksum = "81679d9ed988d5e9a5e6531dc3f2c28efbd639cbd1dfb628df08edea6004da77"
 dependencies = [
  "darling",
  "proc-macro2",
diff --git a/Cargo.toml b/Cargo.toml
index 93870e0d6..8bf25cd4a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -591,7 +591,7 @@ version = "0.7.1"
 
 # Custom serialization helpers
 [workspace.dependencies.serde_with]
-version = "3.12.0"
+version = "3.13.0"
 features = ["hex", "chrono"]
 
 # YAML serialization