diff --git a/Cargo.lock b/Cargo.lock
index 5cb444ea1..914932e50 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -158,9 +158,9 @@ checksum = "4b46cbb362ab8752921c97e041f5e366ee6297bd428a31275b9fcf1e380f7299"
 
 [[package]]
 name = "anstream"
-version = "0.6.20"
+version = "0.6.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3ae563653d1938f79b1ab1b5e668c87c76a9930414574a6583a7b7e11a8e6192"
+checksum = "43d5b281e737544384e969a5ccad3f1cdd24b48086a0fc1b2a5262a26b8f4f4a"
 dependencies = [
  "anstyle",
  "anstyle-parse",
@@ -242,7 +242,7 @@ dependencies = [
  "jsonwebtoken",
  "num-traits",
  "once_cell",
- "prometheus 0.14.0",
+ "prometheus",
  "prost 0.14.1",
  "prost-build",
  "qrcode",
@@ -293,9 +293,9 @@ dependencies = [
  "futures",
  "hdrhistogram",
  "jsonwebtoken",
- "parking_lot 0.12.4",
+ "parking_lot 0.12.5",
  "plotters",
- "prometheus 0.13.4",
+ "prometheus",
  "prost 0.13.5",
  "rand 0.8.5",
  "reqwest 0.12.23",
@@ -1241,17 +1241,6 @@ dependencies = [
  "tower-service",
 ]
 
-[[package]]
-name = "backoff"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b62ddb9cb1ec0a098ad4bbf9344d0713fa193ae1a80af55febcff2627b6a00c1"
-dependencies = [
- "getrandom 0.2.16",
- "instant",
- "rand 0.8.5",
-]
-
 [[package]]
 name = "backon"
 version = "1.5.2"
@@ -1259,6 +1248,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "592277618714fbcecda9a02ba7a8781f319d26532a88553bbacc77ba5d2b3a8d"
 dependencies = [
  "fastrand",
+ "gloo-timers",
+ "tokio",
 ]
 
 [[package]]
@@ -1280,8 +1271,8 @@ dependencies = [
  "ml",
  "ndarray",
  "num-traits",
- "parking_lot 0.12.4",
- "prometheus 0.14.0",
+ "parking_lot 0.12.5",
+ "prometheus",
  "proptest",
  "rust_decimal",
  "rust_decimal_macros",
@@ -1615,18 +1606,18 @@ dependencies = [
 
 [[package]]
 name = "bytemuck"
-version = "1.23.2"
+version = "1.24.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3995eaeebcdf32f91f980d360f78732ddc061097ab4e39991ae7a6ace9194677"
+checksum = "1fbdf580320f38b612e485521afda1ee26d10cc9884efaaa750d383e13e3c5f4"
 dependencies = [
  "bytemuck_derive",
 ]
 
 [[package]]
 name = "bytemuck_derive"
-version = "1.10.1"
+version = "1.10.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4f154e572231cb6ba2bd1176980827e3d5dc04cc183a75dea38109fbdd672d29"
+checksum = "f9abbd1bc6865053c427f7198e6af43bfdedc55ab791faed4fbd361d789575ff"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1744,9 +1735,9 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.2.39"
+version = "1.2.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e1354349954c6fc9cb0deab020f27f783cf0b604e8bb754dc4658ecf0d29c35f"
+checksum = "e1d05d92f4b1fd76aad469d46cdd858ca761576082cd37df81416691e50199fb"
 dependencies = [
  "find-msvc-tools",
  "jobserver",
@@ -2358,7 +2349,7 @@ dependencies = [
  "crossterm_winapi",
  "libc",
  "mio 0.8.11",
- "parking_lot 0.12.4",
+ "parking_lot 0.12.5",
  "signal-hook",
  "signal-hook-mio",
  "winapi",
@@ -2373,7 +2364,7 @@ dependencies = [
  "bitflags 2.9.4",
  "crossterm_winapi",
  "mio 1.0.4",
- "parking_lot 0.12.4",
+ "parking_lot 0.12.5",
  "rustix 0.38.44",
  "signal-hook",
  "signal-hook-mio",
@@ -2548,7 +2539,7 @@ dependencies = [
  "hashbrown 0.14.5",
  "lock_api",
  "once_cell",
- "parking_lot_core 0.9.11",
+ "parking_lot_core 0.9.12",
 ]
 
 [[package]]
@@ -2562,7 +2553,7 @@ dependencies = [
  "hashbrown 0.14.5",
  "lock_api",
  "once_cell",
- "parking_lot_core 0.9.11",
+ "parking_lot_core 0.9.12",
  "serde",
 ]
 
@@ -2596,7 +2587,7 @@ dependencies = [
  "nonzero",
  "num-traits",
  "num_cpus",
- "parking_lot 0.12.4",
+ "parking_lot 0.12.5",
  "parquet",
  "rand 0.8.5",
  "redis",
@@ -2752,7 +2743,7 @@ dependencies = [
  "backtrace",
  "lazy_static",
  "mintex",
- "parking_lot 0.12.4",
+ "parking_lot 0.12.5",
  "rustc-hash 1.1.0",
  "serde",
  "serde_json",
@@ -2838,9 +2829,9 @@ checksum = "92773504d58c093f6de2459af4af33faa518c13451eb8f2b5698ed3d36e7c813"
 
 [[package]]
 name = "dwrote"
-version = "0.11.4"
+version = "0.11.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "20c93d234bac0cdd0e2ac08bc8a5133f8df2169e95b262dfcea5e5cb7855672f"
+checksum = "9e1b35532432acc8b19ceed096e35dfa088d3ea037fe4f3c085f1f97f33b4d02"
 dependencies = [
  "lazy_static",
  "libc",
@@ -2860,13 +2851,20 @@ dependencies = [
 
 [[package]]
 name = "dyn-stack"
-version = "0.13.0"
+version = "0.13.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "490bd48eb68fffcfed519b4edbfd82c69cbe741d175b84f0e0cbe8c57cbe0bdd"
+checksum = "1c4713e43e2886ba72b8271aa66c93d722116acf7a75555cce11dcde84388fe8"
 dependencies = [
  "bytemuck",
+ "dyn-stack-macros",
 ]
 
+[[package]]
+name = "dyn-stack-macros"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05dbec7076f432bb132db738df90d87a4f5789e99f59e7b1219a6b8ef61eaa68"
+
 [[package]]
 name = "ecdsa"
 version = "0.14.8"
@@ -3116,9 +3114,9 @@ dependencies = [
 
 [[package]]
 name = "find-msvc-tools"
-version = "0.1.2"
+version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1ced73b1dacfc750a6db6c0a0c3a3853c8b41997e2e2c563dc90804ae6867959"
+checksum = "0399f9d26e5191ce32c498bebd31e7a3ceabc2745f0ac54af3f335126c3f24b3"
 
 [[package]]
 name = "fixedbitset"
@@ -3144,9 +3142,9 @@ dependencies = [
 
 [[package]]
 name = "flate2"
-version = "1.1.2"
+version = "1.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4a3d7db9596fecd151c5f638c0ee5d5bd487b6e0ea232e5dc96d5250f6f94b1d"
+checksum = "04bcaeafafdd3cd1cb5d986ff32096ad1136630207c49b9091e3ae541090d938"
 dependencies = [
  "crc32fast",
  "libz-rs-sys",
@@ -3278,7 +3276,7 @@ dependencies = [
  "futures",
  "http 1.3.1",
  "lazy_static",
- "prometheus 0.14.0",
+ "prometheus",
  "proptest",
  "prost 0.14.1",
  "rand 0.8.5",
@@ -3429,7 +3427,7 @@ checksum = "1d930c203dd0b6ff06e0201a4a2fe9149b43c684fd4420555b26d21b1a02956f"
 dependencies = [
  "futures-core",
  "lock_api",
- "parking_lot 0.12.4",
+ "parking_lot 0.12.5",
 ]
 
 [[package]]
@@ -3527,7 +3525,7 @@ version = "0.18.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ab96b703d31950f1aeddded248bc95543c9efc7ac9c4a21fda8703a83ee35451"
 dependencies = [
- "dyn-stack 0.13.0",
+ "dyn-stack 0.13.2",
  "gemm-c32 0.18.2",
  "gemm-c64 0.18.2",
  "gemm-common 0.18.2",
@@ -3562,7 +3560,7 @@ version = "0.18.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f6db9fd9f40421d00eea9dd0770045a5603b8d684654816637732463f4073847"
 dependencies = [
- "dyn-stack 0.13.0",
+ "dyn-stack 0.13.2",
  "gemm-common 0.18.2",
  "num-complex 0.4.6",
  "num-traits",
@@ -3592,7 +3590,7 @@ version = "0.18.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dfcad8a3d35a43758330b635d02edad980c1e143dc2f21e6fd25f9e4eada8edf"
 dependencies = [
- "dyn-stack 0.13.0",
+ "dyn-stack 0.13.2",
  "gemm-common 0.18.2",
  "num-complex 0.4.6",
  "num-traits",
@@ -3628,7 +3626,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a352d4a69cbe938b9e2a9cb7a3a63b7e72f9349174a2752a558a8a563510d0f3"
 dependencies = [
  "bytemuck",
- "dyn-stack 0.13.0",
+ "dyn-stack 0.13.2",
  "half 2.6.0",
  "libm",
  "num-complex 0.4.6",
@@ -3666,7 +3664,7 @@ version = "0.18.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cff95ae3259432f3c3410eaa919033cd03791d81cebd18018393dc147952e109"
 dependencies = [
- "dyn-stack 0.13.0",
+ "dyn-stack 0.13.2",
  "gemm-common 0.18.2",
  "gemm-f32 0.18.2",
  "half 2.6.0",
@@ -3699,7 +3697,7 @@ version = "0.18.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bc8d3d4385393304f407392f754cd2dc4b315d05063f62cf09f47b58de276864"
 dependencies = [
- "dyn-stack 0.13.0",
+ "dyn-stack 0.13.2",
  "gemm-common 0.18.2",
  "num-complex 0.4.6",
  "num-traits",
@@ -3729,7 +3727,7 @@ version = "0.18.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "35b2a4f76ce4b8b16eadc11ccf2e083252d8237c1b589558a49b0183545015bd"
 dependencies = [
- "dyn-stack 0.13.0",
+ "dyn-stack 0.13.2",
  "gemm-common 0.18.2",
  "num-complex 0.4.6",
  "num-traits",
@@ -3817,6 +3815,18 @@ version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0cc23270f6e1808e30a928bdc84dea0b9b4136a8bc82338574f23baf47bbd280"
 
+[[package]]
+name = "gloo-timers"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bbb143cf96099802033e0d4f4963b19fd2e0b728bcf076cd9cf7f6634f092994"
+dependencies = [
+ "futures-channel",
+ "futures-core",
+ "js-sys",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "go-parse-duration"
 version = "0.1.1"
@@ -3835,7 +3845,7 @@ dependencies = [
  "futures-timer",
  "no-std-compat",
  "nonzero_ext",
- "parking_lot 0.12.4",
+ "parking_lot 0.12.5",
  "portable-atomic",
  "quanta",
  "rand 0.8.5",
@@ -4874,7 +4884,7 @@ checksum = "416f7e718bdb06000964960ffa43b4335ad4012ae8b99060261aa4a8088d5ccb"
 dependencies = [
  "bitflags 2.9.4",
  "libc",
- "redox_syscall 0.5.17",
+ "redox_syscall 0.5.18",
 ]
 
 [[package]]
@@ -4916,11 +4926,10 @@ checksum = "241eaef5fd12c88705a01fc1066c48c4b36e0dd4377dcdc7ec3942cea7a69956"
 
 [[package]]
 name = "lock_api"
-version = "0.4.13"
+version = "0.4.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "96936507f153605bddfcda068dd804796c84324ed2510809e5b2a624c81da765"
+checksum = "224399e74b87b5f3557511d98dff8b14089b3dadafcab6bb93eab67d3aace965"
 dependencies = [
- "autocfg",
  "scopeguard",
 ]
 
@@ -5230,9 +5239,9 @@ dependencies = [
  "num-traits",
  "num_cpus",
  "once_cell",
- "parking_lot 0.12.4",
+ "parking_lot 0.12.5",
  "petgraph 0.6.5",
- "prometheus 0.14.0",
+ "prometheus",
  "proptest",
  "rand 0.8.5",
  "rand_distr 0.4.3",
@@ -5372,9 +5381,9 @@ dependencies = [
 
 [[package]]
 name = "moxcms"
-version = "0.7.5"
+version = "0.7.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ddd32fa8935aeadb8a8a6b6b351e40225570a37c43de67690383d87ef170cd08"
+checksum = "1cc7d85f3d741164e8972ad355e26ac6e51b20fcae5f911c7da8f2d8bbbb3f33"
 dependencies = [
  "num-traits",
  "pxfm",
@@ -5721,9 +5730,9 @@ dependencies = [
 
 [[package]]
 name = "objc2-core-foundation"
-version = "0.3.1"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1c10c2894a6fed806ade6027bcd50662746363a9589d3ec9d9bef30a4e4bc166"
+checksum = "2a180dd8642fa45cdb7dd721cd4c11b1cadd4929ce112ebd8b9f5803cc79d536"
 dependencies = [
  "bitflags 2.9.4",
 ]
@@ -5752,7 +5761,7 @@ dependencies = [
  "hyper 1.7.0",
  "itertools 0.13.0",
  "md-5",
- "parking_lot 0.12.4",
+ "parking_lot 0.12.5",
  "percent-encoding",
  "quick-xml",
  "rand 0.8.5",
@@ -5914,12 +5923,12 @@ dependencies = [
 
 [[package]]
 name = "parking_lot"
-version = "0.12.4"
+version = "0.12.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70d58bf43669b5795d1576d0641cfb6fbb2057bf629506267a92807158584a13"
+checksum = "93857453250e3077bd71ff98b6a65ea6621a19bb0f559a85248955ac12c45a1a"
 dependencies = [
  "lock_api",
- "parking_lot_core 0.9.11",
+ "parking_lot_core 0.9.12",
 ]
 
 [[package]]
@@ -5938,18 +5947,17 @@ dependencies = [
 
 [[package]]
 name = "parking_lot_core"
-version = "0.9.11"
+version = "0.9.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc838d2a56b5b1a6c25f55575dfc605fabb63bb2365f6c2353ef9159aa69e4a5"
+checksum = "2621685985a2ebf1c516881c026032ac7deafcda1a2c9b7850dc81e3dfcb64c1"
 dependencies = [
  "backtrace",
  "cfg-if",
  "libc",
  "petgraph 0.6.5",
- "redox_syscall 0.5.17",
+ "redox_syscall 0.5.18",
  "smallvec",
- "thread-id",
- "windows-targets 0.52.6",
+ "windows-link 0.2.0",
 ]
 
 [[package]]
@@ -6389,21 +6397,6 @@ dependencies = [
  "syn 2.0.106",
 ]
 
-[[package]]
-name = "prometheus"
-version = "0.13.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3d33c28a30771f7f96db69893f78b857f7450d7e0237e9c8fc6427a81bae7ed1"
-dependencies = [
- "cfg-if",
- "fnv",
- "lazy_static",
- "memchr",
- "parking_lot 0.12.4",
- "protobuf 2.28.0",
- "thiserror 1.0.69",
-]
-
 [[package]]
 name = "prometheus"
 version = "0.14.0"
@@ -6414,8 +6407,8 @@ dependencies = [
  "fnv",
  "lazy_static",
  "memchr",
- "parking_lot 0.12.4",
- "protobuf 3.7.2",
+ "parking_lot 0.12.5",
+ "protobuf",
  "thiserror 2.0.17",
 ]
 
@@ -6539,12 +6532,6 @@ dependencies = [
  "prost 0.14.1",
 ]
 
-[[package]]
-name = "protobuf"
-version = "2.28.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "106dd99e98437432fed6519dedecfade6a06a73bb7b2a1e019fdd2bee5778d94"
-
 [[package]]
 name = "protobuf"
 version = "3.7.2"
@@ -7030,9 +7017,9 @@ dependencies = [
 
 [[package]]
 name = "redox_syscall"
-version = "0.5.17"
+version = "0.5.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5407465600fb0548f1442edf71dd20683c6ed326200ace4b1ef0763521bb3b77"
+checksum = "ed2bf2547551a7053d6fdfafda3f938979645c44812fbfcda098faae3f1a362d"
 dependencies = [
  "bitflags 2.9.4",
 ]
@@ -7244,7 +7231,7 @@ dependencies = [
  "num 0.4.3",
  "num-traits",
  "orderbook",
- "prometheus 0.14.0",
+ "prometheus",
  "proptest",
  "rand 0.8.5",
  "rand_distr 0.4.3",
@@ -7669,9 +7656,9 @@ checksum = "b39cdef0fa800fc44525c84ccb54a029961a8215f9619753635a9c0d2538d46d"
 
 [[package]]
 name = "rusty-fork"
-version = "0.3.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cb3dcc6e454c328bb824492db107ab7c0ae8fcffe4ad210136ef014458c1bc4f"
+checksum = "cc6bf79ff24e648f6da1f8d1f011e9cac26491b619e6b9280f2b47f1774e6ee2"
 dependencies = [
  "fnv",
  "quick-error 1.2.3",
@@ -7979,7 +7966,7 @@ dependencies = [
  "futures",
  "log",
  "once_cell",
- "parking_lot 0.12.4",
+ "parking_lot 0.12.5",
  "scc",
  "serial_test_derive",
 ]
@@ -8516,7 +8503,7 @@ version = "1.0.0"
 dependencies = [
  "anyhow",
  "async-trait",
- "backoff",
+ "backon",
  "bincode",
  "bytes",
  "chrono",
@@ -8529,7 +8516,7 @@ dependencies = [
  "indexmap",
  "lru",
  "object_store",
- "parking_lot 0.12.4",
+ "parking_lot 0.12.5",
  "rustc-hash 1.1.0",
  "serde",
  "serde_json",
@@ -8862,7 +8849,7 @@ dependencies = [
  "lazy_static",
  "ml",
  "num 0.4.3",
- "parking_lot 0.12.4",
+ "parking_lot 0.12.5",
  "perf-event",
  "proptest",
  "quickcheck",
@@ -8939,16 +8926,6 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3bf63baf9f5039dadc247375c29eb13706706cfde997d0330d05aa63a77d8820"
 
-[[package]]
-name = "thread-id"
-version = "4.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cfe8f25bbdd100db7e1d34acf7fd2dc59c4bf8f7483f505eaa7d4f12f76cc0ea"
-dependencies = [
- "libc",
- "winapi",
-]
-
 [[package]]
 name = "thread_local"
 version = "1.1.9"
@@ -9127,7 +9104,7 @@ dependencies = [
  "io-uring",
  "libc",
  "mio 1.0.4",
- "parking_lot 0.12.4",
+ "parking_lot 0.12.5",
  "pin-project-lite",
  "signal-hook-registry",
  "slab",
@@ -9623,8 +9600,8 @@ dependencies = [
  "lru",
  "num_cpus",
  "once_cell",
- "parking_lot 0.12.4",
- "prometheus 0.14.0",
+ "parking_lot 0.12.5",
+ "prometheus",
  "proptest",
  "rand 0.8.5",
  "redis",
@@ -9635,6 +9612,7 @@ dependencies = [
  "serde_json",
  "sha2",
  "sqlx",
+ "tempfile",
  "thiserror 1.0.69",
  "tokio",
  "tokio-util",
@@ -9673,7 +9651,7 @@ dependencies = [
  "ml-data",
  "num-traits",
  "once_cell",
- "prometheus 0.14.0",
+ "prometheus",
  "prost 0.14.1",
  "prost-build",
  "rand 0.8.5",
diff --git a/ml/Cargo.toml b/ml/Cargo.toml
index 6eef9b97f..eabf58dff 100644
--- a/ml/Cargo.toml
+++ b/ml/Cargo.toml
@@ -27,7 +27,7 @@ simd = []  # SIMD without heavy dependencies
 # Storage and memory management features
 gc = []  # Garbage collection features
 s3-storage = ["aws-config", "aws-sdk-s3", "aws-types", "aws-credential-types", "urlencoding"]  # S3 storage backend with AWS SDK
-cuda = []  # CUDA support (moved to training service)
+cuda = ["candle-core/cuda", "candle-core/cudnn"]  # CUDA support - OPTIONAL for CI/Docker
 
 # ALL HEAVY ML FEATURES REMOVED:
 # gpu, pytorch, linfa-ml - MOVED TO ml_training_service
@@ -63,8 +63,8 @@ risk = { path = "../risk" }
 storage = { path = "../storage" }
 
 
-# Essential ML frameworks for HFT inference - CUDA REQUIRED FOR PERFORMANCE
-candle-core = { version = "0.9", features = ["cuda", "cudnn"] }  # CUDA mandatory for HFT latency
+# Essential ML frameworks for HFT inference - CUDA OPTIONAL (enable via 'cuda' feature)
+candle-core = { version = "0.9" }  # CPU-only by default, add 'cuda' feature for GPU
 candle-nn = { version = "0.9" }
 candle-optimisers = { version = "0.9" }
 
diff --git a/services/api_gateway/load_tests/Cargo.toml b/services/api_gateway/load_tests/Cargo.toml
index 321d9bdbd..948475ff3 100644
--- a/services/api_gateway/load_tests/Cargo.toml
+++ b/services/api_gateway/load_tests/Cargo.toml
@@ -21,7 +21,7 @@ prost = "0.13"
 
 # Metrics and histograms
 hdrhistogram = "7.5"
-prometheus = "0.13"
+prometheus = "0.14"
 
 # System monitoring
 sysinfo = "0.34"
diff --git a/storage/Cargo.toml b/storage/Cargo.toml
index b81b10b36..8e6519515 100644
--- a/storage/Cargo.toml
+++ b/storage/Cargo.toml
@@ -60,7 +60,7 @@ config = { workspace = true }
 # Common types and utilities
 common = { workspace = true }
 # Error handling and retry logic
-backoff = "0.4"
+backon = "1.5"  # Replaced unmaintained backoff crate
 
 [dev-dependencies]
 # Testing
diff --git a/trading_engine/Cargo.toml b/trading_engine/Cargo.toml
index b8a132878..87ac692ff 100644
--- a/trading_engine/Cargo.toml
+++ b/trading_engine/Cargo.toml
@@ -96,6 +96,7 @@ tokio-util = { version = "0.7", features = ["io"], optional = true }
 [dev-dependencies]
 proptest.workspace = true
 futures.workspace = true
+tempfile.workspace = true
 
 [features]
 default = ["serde", "simd", "std", "brokers", "persistence"]