diff --git a/Cargo.lock b/Cargo.lock
index 164ab7b2..a453322f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -413,7 +413,7 @@ dependencies = [
  "jaq-std",
  "md-5",
  "monty",
- "monty-types",
+ "monty-types 0.0.19",
  "num-traits",
  "os_display",
  "pretty_assertions",
@@ -961,7 +961,7 @@ version = "3.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "faf9468729b8cbcea668e36183cb69d317348c2e08e994829fb56ebfdfbaac34"
 dependencies = [
- "windows-sys 0.52.0",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -1525,7 +1525,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "39cab71617ae0d63f51a36d69f866391735b51691dbda63cf6f96d042b63efeb"
 dependencies = [
  "libc",
- "windows-sys 0.52.0",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -2525,8 +2525,9 @@ dependencies = [
 
 [[package]]
 name = "jiter"
-version = "0.15.0"
-source = "git+https://github.com/pydantic/jiter?rev=6d57715e01ec78859c62fc5447073c0b5902de39#6d57715e01ec78859c62fc5447073c0b5902de39"
+version = "0.16.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "820ddcacd75c9782308d3fa594f3885630ea3f49adba78a8a29abdfe4b81630c"
 dependencies = [
  "ahash",
  "bitvec",
@@ -2916,27 +2917,31 @@ dependencies = [
 
 [[package]]
 name = "monty"
-version = "0.0.19"
+version = "0.0.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "58b15149448f6034f1bd581638fdf821753b0182a4c5eaf13e4cfd92f95d966b"
+checksum = "db44565f603ada5dd98bd580623cd9ce299c8b823bd7195c654826fa536b4d48"
 dependencies = [
  "ahash",
  "chrono",
  "fancy-regex 0.17.0",
  "hashbrown 0.16.1",
+ "indexmap",
  "itertools 0.14.0",
  "itoa",
  "jiter",
  "libm",
- "monty-macros",
- "monty-types",
+ "memchr",
+ "monty-macros 0.0.21",
+ "monty-types 0.0.21",
  "num-bigint",
  "num-integer",
  "num-traits",
  "postcard",
  "ruff_python_ast",
+ "ruff_python_codegen",
  "ruff_python_parser",
  "ruff_python_stdlib",
+ "ruff_source_file",
  "ruff_text_size",
  "serde",
  "smallvec",
@@ -2958,6 +2963,17 @@ dependencies = [
  "syn 2.0.119",
 ]
 
+[[package]]
+name = "monty-macros"
+version = "0.0.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "40ed428288161f63d2bec7929438563fe31390f08e014e58ce20be96d7ef82ee"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.119",
+]
+
 [[package]]
 name = "monty-types"
 version = "0.0.19"
@@ -2965,7 +2981,23 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3a8988fa8d9902432d5e685a7bb97c84844022dd9560e796c00b119a4c27519b"
 dependencies = [
  "chrono",
- "monty-macros",
+ "monty-macros 0.0.19",
+ "num-bigint",
+ "num-traits",
+ "serde",
+ "strum 0.27.2",
+ "unicode-general-category",
+ "web-time",
+]
+
+[[package]]
+name = "monty-types"
+version = "0.0.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "00b4b3318107fee36c5eee05c52f16f6565a63aa29d04f8608ebc221e3fe5dd8"
+dependencies = [
+ "chrono",
+ "monty-macros 0.0.21",
  "num-bigint",
  "num-traits",
  "serde",
@@ -4327,6 +4359,31 @@ dependencies = [
  "thiserror",
 ]
 
+[[package]]
+name = "ruff_python_codegen"
+version = "0.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1902d82ae0745be9d3d12a1aee4429acff987c768710dc38a6521eab05990ca0"
+dependencies = [
+ "ruff_python_ast",
+ "ruff_python_literal",
+ "ruff_python_parser",
+ "ruff_source_file",
+ "ruff_text_size",
+]
+
+[[package]]
+name = "ruff_python_literal"
+version = "0.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "af3e1f868fa58adc12d1fa3ce1b29c6098aa4b101739d9589cbde9fec239af59"
+dependencies = [
+ "bitflags 2.13.1",
+ "icu_properties",
+ "itertools 0.15.0",
+ "ruff_python_ast",
+]
+
 [[package]]
 name = "ruff_python_parser"
 version = "0.0.3"
@@ -4521,7 +4578,7 @@ dependencies = [
  "errno",
  "libc",
  "linux-raw-sys",
- "windows-sys 0.52.0",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -4578,7 +4635,7 @@ dependencies = [
  "security-framework",
  "security-framework-sys",
  "webpki-root-certs",
- "windows-sys 0.52.0",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -5314,7 +5371,7 @@ dependencies = [
  "getrandom 0.4.3",
  "once_cell",
  "rustix",
- "windows-sys 0.52.0",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -6125,7 +6182,7 @@ version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c2a7b1c03c876122aa43f3020e6c3c3ee5c05081c9a00739faf7503aeba10d22"
 dependencies = [
- "windows-sys 0.52.0",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -6503,3 +6560,8 @@ name = "zmij"
 version = "1.0.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b8848ee67ecc8aedbaf3e4122217aff892639231befc6a1b58d29fff4c2cabaa"
+
+[[patch.unused]]
+name = "jiter"
+version = "0.15.0"
+source = "git+https://github.com/pydantic/jiter?rev=6d57715e01ec78859c62fc5447073c0b5902de39#6d57715e01ec78859c62fc5447073c0b5902de39"
diff --git a/crates/bashkit/Cargo.toml b/crates/bashkit/Cargo.toml
index 272d5dff..2770da04 100644
--- a/crates/bashkit/Cargo.toml
+++ b/crates/bashkit/Cargo.toml
@@ -106,7 +106,7 @@ os_display = "0.1.3"
 # Registry dep since monty 0.0.19 — the first version published to crates.io.
 # Keeps `python` usable for downstream crates and lets the publish workflow
 # ship the feature instead of stripping it.
-monty = { version = "0.0.19", optional = true }
+monty = { version = "0.0.21", optional = true }
 monty-types = { version = "0.0.19", optional = true }
 
 # Embedded TypeScript interpreter (optional)