diff --git a/Cargo.lock b/Cargo.lock
index 0eef1946..42393741 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -477,7 +477,7 @@ name = "bashkit-python"
 version = "0.13.0"
 dependencies = [
  "bashkit",
- "num-bigint",
+ "num-bigint 0.5.1",
  "pyo3",
  "pyo3-async-runtimes",
  "serde_json",
@@ -503,7 +503,7 @@ checksum = "4d6867f1565b3aad85681f1015055b087fcfd840d6aeee6eee7f2da317603695"
 dependencies = [
  "autocfg",
  "libm",
- "num-bigint",
+ "num-bigint 0.4.8",
  "num-integer",
  "num-traits",
 ]
@@ -2371,7 +2371,7 @@ dependencies = [
  "indexmap",
  "jaq-core",
  "jaq-std",
- "num-bigint",
+ "num-bigint 0.4.8",
  "num-traits",
  "ryu",
  "self_cell",
@@ -2444,7 +2444,7 @@ dependencies = [
  "ahash",
  "bitvec",
  "lexical-parse-float",
- "num-bigint",
+ "num-bigint 0.4.8",
  "num-traits",
  "pyo3",
  "smallvec",
@@ -2771,9 +2771,9 @@ dependencies = [
 
 [[package]]
 name = "mira-eval"
-version = "0.3.0"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bf935bd40f8219ff9e63c4759ae0fdecc0b4630f39e43698672c27c915066872"
+checksum = "a8a983e47b39772faf20d898dad72f124eb4e8929679f561ec2193d77aef56d5"
 dependencies = [
  "async-trait",
  "inventory",
@@ -2787,9 +2787,9 @@ dependencies = [
 
 [[package]]
 name = "mira-macros"
-version = "0.3.0"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7370b92382487f6e7e0b62b8dc4c94a504b2a8169d999fc85a87e5df448bce2c"
+checksum = "0a770347f4ce22c743dbf02c1a55af1dd88ee9bc35decc392e69e8df911fd38b"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2835,7 +2835,7 @@ dependencies = [
  "jiter",
  "libm",
  "monty-macros",
- "num-bigint",
+ "num-bigint 0.4.8",
  "num-integer",
  "num-traits",
  "postcard",
@@ -2862,9 +2862,9 @@ dependencies = [
 
 [[package]]
 name = "napi"
-version = "3.10.3"
+version = "3.10.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0c71997d6f7ad4a756966e452426848ac27d3b37a295302d63afbbcce0270f93"
+checksum = "6826e5ddc15589b2d68c8ad5321c18e85d40488e93e32962f362e572669bccf6"
 dependencies = [
  "bitflags 2.13.0",
  "ctor",
@@ -2884,9 +2884,9 @@ checksum = "c9c366d2c8c60b86fa632df75f745509b52f9128f91a6bad4c796e44abb505e1"
 
 [[package]]
 name = "napi-derive"
-version = "3.5.9"
+version = "3.5.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d4ba572deef53e2c386759a8c2014175a62679d74ff83adc205c8bc0e0285727"
+checksum = "b0fe526e81c105d3640516fcde83909dd1afe757c0d7a15af58830b5bc0fb9a1"
 dependencies = [
  "convert_case",
  "ctor",
@@ -2898,9 +2898,9 @@ dependencies = [
 
 [[package]]
 name = "napi-derive-backend"
-version = "5.1.1"
+version = "5.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ddd961eb2aa8965e3f29722d754f3a86907eb1984e2fbcbe3fe87b9a02d6bfba"
+checksum = "514281397bcddd9ea9a876c7a21a57bff2374237a000ca9a64ea0211ec1993e2"
 dependencies = [
  "convert_case",
  "proc-macro2",
@@ -2911,9 +2911,9 @@ dependencies = [
 
 [[package]]
 name = "napi-sys"
-version = "3.2.2"
+version = "3.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1f5bcdf71abd3a50d00b49c1c2c75251cb3c913777d6139cd37dabc093a5e400"
+checksum = "73e43cf2eb0bd1bf95a43c07c076ebd2da5d1e015a71c3d201faeffffcc0ecac"
 dependencies = [
  "libloading 0.9.0",
 ]
@@ -2971,6 +2971,16 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "num-bigint"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "93e7820bc0a80a0238e650327316f929ba18d5be054b647490a3a6a339f3e7c0"
+dependencies = [
+ "num-integer",
+ "num-traits",
+]
+
 [[package]]
 name = "num-integer"
 version = "0.1.46"
@@ -3140,7 +3150,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "71b23b64fa8c4a84b1406de383c4666366c9f54ffb9cb11a63b8d7433950460a"
 dependencies = [
  "cow-utils",
- "num-bigint",
+ "num-bigint 0.4.8",
  "num-traits",
  "oxc_allocator",
  "oxc_ast",
@@ -3174,7 +3184,7 @@ dependencies = [
  "bitflags 2.13.0",
  "cow-utils",
  "memchr",
- "num-bigint",
+ "num-bigint 0.4.8",
  "num-traits",
  "oxc_allocator",
  "oxc_ast",
@@ -3792,7 +3802,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cd274650b21d4bfc26a0a47587962c1edb425f69287324355cd040c3ea66071c"
 dependencies = [
  "libc",
- "num-bigint",
+ "num-bigint 0.4.8",
  "num-traits",
  "once_cell",
  "portable-atomic",
@@ -4057,9 +4067,9 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "1.12.4"
+version = "1.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f1292b7759ae1cb9ec195452d1390a074f0cd8541ab7a5a8c31cd6db45d4a6ba"
+checksum = "2a0e75113e14dc5acb068cd0786884f214f1312650a3d36d269f5c4f3cdee8a2"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -4298,7 +4308,7 @@ dependencies = [
  "md5",
  "ml-kem",
  "module-lattice",
- "num-bigint",
+ "num-bigint 0.4.8",
  "p256",
  "p384",
  "p521",
@@ -5509,7 +5519,7 @@ dependencies = [
  "libm",
  "loom",
  "miette",
- "num-bigint",
+ "num-bigint 0.4.8",
  "num-traits",
  "pack1",
  "parking_lot",
diff --git a/crates/bashkit-eval/Cargo.toml b/crates/bashkit-eval/Cargo.toml
index 1b4922e7..aef34519 100644
--- a/crates/bashkit-eval/Cargo.toml
+++ b/crates/bashkit-eval/Cargo.toml
@@ -22,7 +22,7 @@ path = "src/main.rs"
 # Mira eval framework (crates.io). Imported as `mira`; the `macros` feature
 # provides the #[eval] discovery attribute. We use the in-process Subject path
 # (our own agent loop + provider stack) so we do NOT need mira-everruns.
-mira-eval = { version = "0.3", features = ["macros"] }
+mira-eval = { version = "0.4", features = ["macros"] }
 
 bashkit = { path = "../bashkit", features = ["scripted_tool", "jq"] }
 tokio = { workspace = true, features = ["rt-multi-thread", "io-std", "io-util", "fs"] }
diff --git a/crates/bashkit-python/Cargo.toml b/crates/bashkit-python/Cargo.toml
index 4e29d6ec..1532115e 100644
--- a/crates/bashkit-python/Cargo.toml
+++ b/crates/bashkit-python/Cargo.toml
@@ -27,7 +27,7 @@ serde_json = { workspace = true }
 # hands them to `MontyObject::BigInt`, and monty (git tag v0.0.18) depends on
 # num-bigint 0.4. Bumping to 0.5 makes the two BigInt types mismatch and fails
 # to compile, so this must track whatever major version bashkit core / monty use.
-num-bigint = "^0.4.6"
+num-bigint = "^0.5.1"
 
 # Native (non-wasm) targets: full feature set.
 # realfs: always-on so Python callers can use mount_real_* APIs.