diff --git a/Cargo.lock b/Cargo.lock
index 0ad5ae27..80d22434 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -157,6 +157,17 @@ version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4b46cbb362ab8752921c97e041f5e366ee6297bd428a31275b9fcf1e380f7299"
 
+[[package]]
+name = "annotate-snippets"
+version = "0.12.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f211a51805bc641f3ad5b7664c77d2547af685cc33b4cd8d31964027a46f13f1"
+dependencies = [
+ "anstyle",
+ "memchr",
+ "unicode-width 0.2.2",
+]
+
 [[package]]
 name = "anstream"
 version = "1.0.0"
@@ -222,6 +233,12 @@ dependencies = [
  "object",
 ]
 
+[[package]]
+name = "arraydeque"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7d902e3d592a523def97af8f317b08ce16b7ab854c1985a0c671e6f15cebc236"
+
 [[package]]
 name = "arrayvec"
 version = "0.5.2"
@@ -471,7 +488,7 @@ dependencies = [
  "bitflags",
  "cexpr",
  "clang-sys",
- "itertools 0.10.5",
+ "itertools 0.13.0",
  "log",
  "prettyplease",
  "proc-macro2",
@@ -1336,6 +1353,24 @@ dependencies = [
  "log",
 ]
 
+[[package]]
+name = "encoding_rs"
+version = "0.8.35"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "75030f3c4f45dafd7586dd6780965a8c7e8e285a5ecb86713e63a79c5b2766f3"
+dependencies = [
+ "cfg-if",
+]
+
+[[package]]
+name = "encoding_rs_io"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1cc3c5651fb62ab8aa3103998dade57efdd028544bd300516baa31840c252a83"
+dependencies = [
+ "encoding_rs",
+]
+
 [[package]]
 name = "enum-ordinalize"
 version = "4.3.2"
@@ -1668,6 +1703,16 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "granit-parser"
+version = "0.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f50ba32164f9e098d5da618776a32afbb32270adcbe3d3d006107dae11e37c91"
+dependencies = [
+ "arraydeque",
+ "smallvec",
+]
+
 [[package]]
 name = "group"
 version = "0.13.0"
@@ -2371,6 +2416,18 @@ dependencies = [
  "serde_json",
 ]
 
+[[package]]
+name = "k8s-openapi"
+version = "0.28.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d9c6922f6afe80418dd6019818af5d0d34584c371780ff09b9752370c25b4abb"
+dependencies = [
+ "base64 0.22.1",
+ "jiff",
+ "serde",
+ "serde_json",
+]
+
 [[package]]
 name = "kars-a2a-core"
 version = "0.1.0"
@@ -2467,7 +2524,7 @@ dependencies = [
  "futures",
  "futures-util",
  "hex",
- "k8s-openapi",
+ "k8s-openapi 0.27.1",
  "kars-eval-corpus",
  "kube",
  "oci-client 0.16.1",
@@ -2518,7 +2575,7 @@ dependencies = [
  "futures",
  "hkdf",
  "jsonwebtoken",
- "k8s-openapi",
+ "k8s-openapi 0.27.1",
  "kars-a2a-core",
  "kube",
  "prometheus",
@@ -2589,11 +2646,11 @@ dependencies = [
 
 [[package]]
 name = "kube"
-version = "3.1.0"
+version = "4.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "acc5a6a69da2975ed9925d56b5dcfc9cc739b66f37add06785b7c9f6d1e88741"
+checksum = "4bb9108095346a7096d11feeaff419c75dddcac1b2f59acb38d7bf3d13c3e146"
 dependencies = [
- "k8s-openapi",
+ "k8s-openapi 0.28.0",
  "kube-client",
  "kube-core",
  "kube-derive",
@@ -2602,9 +2659,9 @@ dependencies = [
 
 [[package]]
 name = "kube-client"
-version = "3.1.0"
+version = "4.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0fcaf2d1f1a91e1805d4cd82e8333c022767ae8ffd65909bbef6802733a7dd40"
+checksum = "d0f628e05bc2264c21fe10d3d675117dc9b43ea3bf4fb07262a222679757537b"
 dependencies = [
  "base64 0.22.1",
  "bytes",
@@ -2619,14 +2676,14 @@ dependencies = [
  "hyper-util",
  "jiff",
  "jsonpath-rust",
- "k8s-openapi",
+ "k8s-openapi 0.28.0",
  "kube-core",
  "pem",
  "rustls",
  "secrecy",
  "serde",
+ "serde-saphyr",
  "serde_json",
- "serde_yaml",
  "thiserror 2.0.18",
  "tokio",
  "tokio-util",
@@ -2637,16 +2694,16 @@ dependencies = [
 
 [[package]]
 name = "kube-core"
-version = "3.1.0"
+version = "4.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f126d2db7a8b532ec1d839ece2a71e2485dc3bbca6cc3c3f929becaa810e719e"
+checksum = "c1b02f5933ba06140d58c7d6727f6c319f0962ec6a344aa5e21e475e891deaa8"
 dependencies = [
  "derive_more",
  "form_urlencoded",
  "http",
  "jiff",
  "json-patch",
- "k8s-openapi",
+ "k8s-openapi 0.28.0",
  "schemars 1.2.1",
  "serde",
  "serde-value",
@@ -2656,9 +2713,9 @@ dependencies = [
 
 [[package]]
 name = "kube-derive"
-version = "3.1.0"
+version = "4.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d6b9b97e121fce957f9cafc6da534abc4276983ab03190b76c09361e2df849fa"
+checksum = "fe171898707dadf1818ef94e81ef57f6beb7edf9ba87b9e814c045dad356c7aa"
 dependencies = [
  "darling 0.23.0",
  "proc-macro2",
@@ -2670,9 +2727,9 @@ dependencies = [
 
 [[package]]
 name = "kube-runtime"
-version = "3.1.0"
+version = "4.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c072737075826ee74d3e615e80334e41e617ca3d14fb46ef7cdfda822d6f15f2"
+checksum = "99ddec66c540c7cf29a5b41fe4a657a53687f95c346e03bdf00585b70a1bab21"
 dependencies = [
  "ahash 0.8.12",
  "async-broadcast",
@@ -2683,7 +2740,7 @@ dependencies = [
  "hashbrown 0.16.1",
  "hostname",
  "json-patch",
- "k8s-openapi",
+ "k8s-openapi 0.28.0",
  "kube-client",
  "parking_lot",
  "pin-project",
@@ -3037,6 +3094,12 @@ version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "650eef8c711430f1a879fdd01d4745a7deea475becfb90269c06775983bbf086"
 
+[[package]]
+name = "nohash-hasher"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2bf50223579dc7cdcfb3bfcacf7069ff68243f8c363f62ffa99cf000a6b9c451"
+
 [[package]]
 name = "nom"
 version = "7.1.3"
@@ -3169,7 +3232,7 @@ version = "5.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "51e219e79014df21a225b1860a479e2dcd7cbd9130f4defd4bd0e191ea31d67d"
 dependencies = [
- "base64 0.21.7",
+ "base64 0.22.1",
  "chrono",
  "getrandom 0.2.17",
  "http",
@@ -3840,7 +3903,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "343d3bd7056eda839b03204e68deff7d1b13aba7af2b2fd16890697274262ee7"
 dependencies = [
  "heck",
- "itertools 0.10.5",
+ "itertools 0.14.0",
  "log",
  "multimap",
  "petgraph 0.8.3",
@@ -3859,7 +3922,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "27c6023962132f4b30eb4c172c91ce92d933da334c59c23cddee82358ddafb0b"
 dependencies = [
  "anyhow",
- "itertools 0.10.5",
+ "itertools 0.14.0",
  "proc-macro2",
  "quote",
  "syn 2.0.117",
@@ -4588,6 +4651,25 @@ dependencies = [
  "serde_derive",
 ]
 
+[[package]]
+name = "serde-saphyr"
+version = "0.0.27"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5897b4c3faadadd35fdb6689f015641f3bc481d5adaaac56231ea15aeb243db3"
+dependencies = [
+ "ahash 0.8.12",
+ "annotate-snippets",
+ "base64 0.22.1",
+ "encoding_rs_io",
+ "getrandom 0.3.4",
+ "granit-parser",
+ "nohash-hasher",
+ "num-traits",
+ "serde",
+ "smallvec",
+ "zmij",
+]
+
 [[package]]
 name = "serde-value"
 version = "0.7.0"
diff --git a/Cargo.toml b/Cargo.toml
index 6e451a53..6f724ceb 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -29,7 +29,7 @@ rust-version = "1.88"
 
 [workspace.dependencies]
 # Kubernetes
-kube = { version = "3.1", features = ["runtime", "derive"] }
+kube = { version = "4.0", features = ["runtime", "derive"] }
 k8s-openapi = { version = "0.27", features = ["latest", "schemars"] }
 schemars = "1"