diff --git a/contracts/Cargo.lock b/contracts/Cargo.lock
index 8cde98f..2a9b074 100644
--- a/contracts/Cargo.lock
+++ b/contracts/Cargo.lock
@@ -14,6 +14,12 @@ dependencies = [
  "zerocopy",
 ]
 
+[[package]]
+name = "allocator-api2"
+version = "0.2.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "683d7910e743518b0e34f1186f92494becacb047c7b6bf616c96772180fef923"
+
 [[package]]
 name = "android_system_properties"
 version = "0.1.6"
@@ -34,9 +40,9 @@ dependencies = [
 
 [[package]]
 name = "ark-bls12-381"
-version = "0.4.0"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c775f0d12169cba7aae4caeb547bb6a50781c7449a8aa53793827c9ec4abf488"
+checksum = "3df4dcc01ff89867cd86b0da835f23c3f02738353aaee7dde7495af71363b8d5"
 dependencies = [
  "ark-ec",
  "ark-ff",
@@ -46,9 +52,9 @@ dependencies = [
 
 [[package]]
 name = "ark-bn254"
-version = "0.4.0"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a22f4561524cd949590d78d7d4c5df8f592430d221f7f3c9497bbafd8972120f"
+checksum = "d69eab57e8d2663efa5c63135b2af4f396d66424f88954c21104125ab6b3e6bc"
 dependencies = [
  "ark-ec",
  "ark-ff",
@@ -57,110 +63,123 @@ dependencies = [
 
 [[package]]
 name = "ark-ec"
-version = "0.4.2"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "defd9a439d56ac24968cca0571f598a61bc8c55f71d50a89cda591cb750670ba"
+checksum = "43d68f2d516162846c1238e755a7c4d131b892b70cc70c471a8e3ca3ed818fce"
 dependencies = [
+ "ahash",
  "ark-ff",
  "ark-poly",
  "ark-serialize",
  "ark-std",
- "derivative",
- "hashbrown 0.13.2",
+ "educe",
+ "fnv",
+ "hashbrown 0.15.5",
  "itertools",
+ "num-bigint",
+ "num-integer",
  "num-traits",
  "zeroize",
 ]
 
 [[package]]
 name = "ark-ff"
-version = "0.4.2"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec847af850f44ad29048935519032c33da8aa03340876d351dfab5660d2966ba"
+checksum = "a177aba0ed1e0fbb62aa9f6d0502e9b46dad8c2eab04c14258a1212d2557ea70"
 dependencies = [
  "ark-ff-asm",
  "ark-ff-macros",
  "ark-serialize",
  "ark-std",
- "derivative",
+ "arrayvec",
  "digest 0.10.7",
+ "educe",
  "itertools",
  "num-bigint",
  "num-traits",
  "paste",
- "rustc_version",
  "zeroize",
 ]
 
 [[package]]
 name = "ark-ff-asm"
-version = "0.4.2"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3ed4aa4fe255d0bc6d79373f7e31d2ea147bcf486cba1be5ba7ea85abdb92348"
+checksum = "62945a2f7e6de02a31fe400aa489f0e0f5b2502e69f95f853adb82a96c7a6b60"
 dependencies = [
  "quote",
- "syn 1.0.109",
+ "syn 2.0.119",
 ]
 
 [[package]]
 name = "ark-ff-macros"
-version = "0.4.2"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7abe79b0e4288889c4574159ab790824d0033b9fdcb2a112a3182fac2e514565"
+checksum = "09be120733ee33f7693ceaa202ca41accd5653b779563608f1234f78ae07c4b3"
 dependencies = [
  "num-bigint",
  "num-traits",
  "proc-macro2",
  "quote",
- "syn 1.0.109",
+ "syn 2.0.119",
 ]
 
 [[package]]
 name = "ark-poly"
-version = "0.4.2"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d320bfc44ee185d899ccbadfa8bc31aab923ce1558716e1997a1e74057fe86bf"
+checksum = "579305839da207f02b89cd1679e50e67b4331e2f9294a57693e5051b7703fe27"
 dependencies = [
+ "ahash",
  "ark-ff",
  "ark-serialize",
  "ark-std",
- "derivative",
- "hashbrown 0.13.2",
+ "educe",
+ "fnv",
+ "hashbrown 0.15.5",
 ]
 
 [[package]]
 name = "ark-serialize"
-version = "0.4.2"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "adb7b85a02b83d2f22f89bd5cac66c9c89474240cb6207cb1efc16d098e822a5"
+checksum = "3f4d068aaf107ebcd7dfb52bc748f8030e0fc930ac8e360146ca54c1203088f7"
 dependencies = [
  "ark-serialize-derive",
  "ark-std",
+ "arrayvec",
  "digest 0.10.7",
  "num-bigint",
 ]
 
 [[package]]
 name = "ark-serialize-derive"
-version = "0.4.2"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ae3281bc6d0fd7e549af32b52511e1302185bd688fd3359fa36423346ff682ea"
+checksum = "213888f660fddcca0d257e88e54ac05bca01885f258ccdf695bafd77031bb69d"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 1.0.109",
+ "syn 2.0.119",
 ]
 
 [[package]]
 name = "ark-std"
-version = "0.4.0"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "94893f1e0c6eeab764ade8dc4c0db24caf4fe7cbbaafc0eba0a9030f447b5185"
+checksum = "246a225cc6131e9ee4f24619af0f19d67761fff15d7ccc22e42b80846e69449a"
 dependencies = [
  "num-traits",
  "rand",
 ]
 
+[[package]]
+name = "arrayvec"
+version = "0.7.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d3fb67a6e08acf24fdeccbac2cb6ac4305825bd1f117462e0e6f2f193345ad56"
+
 [[package]]
 name = "autocfg"
 version = "1.5.1"
@@ -238,9 +257,9 @@ checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
 
 [[package]]
 name = "bytes-lit"
-version = "0.0.5"
+version = "0.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0adabf37211a5276e46335feabcbb1530c95eb3fdf85f324c7db942770aa025d"
+checksum = "9b04f2b1d34cb428043f14aa4c853d14294532e8bbde3b6a3bc2faaaae31a1dd"
 dependencies = [
  "num-bigint",
  "proc-macro2",
@@ -328,6 +347,17 @@ dependencies = [
  "serde_json",
 ]
 
+[[package]]
+name = "crate-git-revision"
+version = "0.0.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "54851b5b3f24621804b1cded2820975623c205e3055d2d44031cdb1237339ac8"
+dependencies = [
+ "serde",
+ "serde_derive",
+ "serde_json",
+]
+
 [[package]]
 name = "crypto-bigint"
 version = "0.5.5"
@@ -542,17 +572,6 @@ dependencies = [
  "serde_core",
 ]
 
-[[package]]
-name = "derivative"
-version = "2.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fcc3dd5e9e9c0b295d6e1e4d811fb6f157d5ffd784b8d202fc62eac8035a770b"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 1.0.109",
-]
-
 [[package]]
 name = "derive_arbitrary"
 version = "1.3.2"
@@ -651,6 +670,18 @@ dependencies = [
  "zeroize",
 ]
 
+[[package]]
+name = "educe"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d7bc049e1bd8cdeb31b68bbd586a9464ecf9f3944af3958a7a9d0f8b9799417"
+dependencies = [
+ "enum-ordinalize",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.119",
+]
+
 [[package]]
 name = "either"
 version = "1.18.0"
@@ -675,6 +706,26 @@ dependencies = [
  "zeroize",
 ]
 
+[[package]]
+name = "enum-ordinalize"
+version = "4.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "89dd01549b09589510cf0647475075d12071456586d70f5c75c98ae2a5537677"
+dependencies = [
+ "enum-ordinalize-derive",
+]
+
+[[package]]
+name = "enum-ordinalize-derive"
+version = "4.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a65863d15a4ce2888bd2f0f543cc963d3879c3a022c8ee43f6141d479a3ac815"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 3.0.5",
+]
+
 [[package]]
 name = "equivalent"
 version = "1.0.2"
@@ -803,11 +854,11 @@ checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
 
 [[package]]
 name = "hashbrown"
-version = "0.13.2"
+version = "0.15.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "43a3c133739dddd0d2990f9a4bdf8eb4b21ef50e4851ca85ab661199821d510e"
+checksum = "9229cfe53dfd69f0609a49f65461bd93001ea1ef889cd5529dd176593f5338a1"
 dependencies = [
- "ahash",
+ "allocator-api2",
 ]
 
 [[package]]
@@ -926,9 +977,9 @@ checksum = "8e04e2fd2b8188ea827b32ef11de88377086d690286ab35747ef7f9bf3ccb590"
 
 [[package]]
 name = "itertools"
-version = "0.10.5"
+version = "0.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b0fd2260e829bddf4cb6ea802289de2f86d6a7a690192fbe91b3f46e0f2c8473"
+checksum = "413ee7dfc52ee1a4949ceeb7dbc8a33f2d6c088194d9f922fb8318faf1f01186"
 dependencies = [
  "either",
 ]
@@ -1475,9 +1526,9 @@ checksum = "b9be42f50aa861c555654aa3a37f52f4b1074bacf4e48fe0ef7fa584e80f1f0f"
 
 [[package]]
 name = "soroban-builtin-sdk-macros"
-version = "25.2.2"
+version = "29.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4ade35a1b0ff1e1d441937e7bd9751ca1abf1f821de6dba20a97c3d2a9839487"
+checksum = "d5696749a648fe7f29c5c1a1583d6d395ffbe69f9b9b9a4609801877a1c7d6df"
 dependencies = [
  "itertools",
  "proc-macro2",
@@ -1487,12 +1538,12 @@ dependencies = [
 
 [[package]]
 name = "soroban-env-common"
-version = "25.2.2"
+version = "29.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b4b8536d2e618a1e8ee7d8fc62d0bd25a414ab6c6bd0c8beb8eb49cb0ca283dd"
+checksum = "bea9253502d02a9068a3d187c003116c97a1e9de6117e76b7382258dada0c4c8"
 dependencies = [
  "arbitrary",
- "crate-git-revision",
+ "crate-git-revision 0.0.9",
  "ethnum",
  "num-derive",
  "num-traits",
@@ -1506,9 +1557,9 @@ dependencies = [
 
 [[package]]
 name = "soroban-env-guest"
-version = "25.2.2"
+version = "29.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "54672105913cdee84f9b724d907b0ee1fb5ef13274b631733f82d513b41bbbc9"
+checksum = "084dc57a7eb025c86061afe6d81cbe6435bc09a51c7bc6cde65b2f56d540af2e"
 dependencies = [
  "soroban-env-common",
  "static_assertions",
@@ -1516,9 +1567,9 @@ dependencies = [
 
 [[package]]
 name = "soroban-env-host"
-version = "25.2.2"
+version = "29.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9dc699ee49eb479b10243e92141ce5055bce93370b15bbc288e3a04460522b11"
+checksum = "e545c3ba835e63894f23dae1e5f1e0221b0b15ae2f119ddeb88c5eb2b4ae9751"
 dependencies = [
  "ark-bls12-381",
  "ark-bn254",
@@ -1553,9 +1604,9 @@ dependencies = [
 
 [[package]]
 name = "soroban-env-macros"
-version = "25.2.2"
+version = "29.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6bfa1fced23738aa5d7f0931f0021193824dd3902094b41aba93bd54e2490b64"
+checksum = "622821b8a1913f85fe66bbfbf0a0a3b3b4d1c71b5bd3e98afbed73ef7563f1ca"
 dependencies = [
  "itertools",
  "proc-macro2",
@@ -1568,9 +1619,9 @@ dependencies = [
 
 [[package]]
 name = "soroban-ledger-snapshot"
-version = "25.3.2"
+version = "29.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d03e97dec49a6253fda7fd67acc2317501dfb795edb6c9df8fd3d6368d0f43b5"
+checksum = "76086b30da4ad888d991f40ca28215cff394132aeaacecfa42e88d4e2cbcfd2b"
 dependencies = [
  "serde",
  "serde_json",
@@ -1582,13 +1633,13 @@ dependencies = [
 
 [[package]]
 name = "soroban-sdk"
-version = "25.3.2"
+version = "29.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ac533d6e9e305219f2aea0d0dabf67ebc2318d397e2923172da4991d7e2caa99"
+checksum = "6a3b97a76c88f413859bb670903b63af54d7ddb03303a5bd585fee8b9f2a3d8f"
 dependencies = [
  "arbitrary",
  "bytes-lit",
- "crate-git-revision",
+ "crate-git-revision 0.0.9",
  "ctor",
  "derive_arbitrary",
  "ed25519-dalek",
@@ -1606,9 +1657,9 @@ dependencies = [
 
 [[package]]
 name = "soroban-sdk-macros"
-version = "25.3.2"
+version = "29.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "85096a9b56a5ba3e8b2c7baa8d66fd6a806799ed68c8f50ed7c3092f5d110268"
+checksum = "c4ad070a31d327a4cbe4eca2ead25eb1905ae022ec1d0f5ebd216e1fe00f064e"
 dependencies = [
  "darling 0.20.11",
  "heck",
@@ -1626,9 +1677,9 @@ dependencies = [
 
 [[package]]
 name = "soroban-spec"
-version = "25.3.2"
+version = "29.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ddff27bf9f759efca36eef385a098b36392266e2604df756e1a70a4c45089f70"
+checksum = "092d55c5563d973c681fb8016fb9bc47a9e8c3d3aa4a5dafcc1c3d4ebc415829"
 dependencies = [
  "base64 0.22.1",
  "sha2",
@@ -1639,9 +1690,9 @@ dependencies = [
 
 [[package]]
 name = "soroban-spec-rust"
-version = "25.3.2"
+version = "29.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b7ccf8ffa328afd23b11792a31f96c97f261943467762eed45b46f7a46433dfc"
+checksum = "436d5b4febf91dcefec2366436363b1826a0c36e19296eb32bedfe41078d48ff"
 dependencies = [
  "prettyplease",
  "proc-macro2",
@@ -1655,9 +1706,9 @@ dependencies = [
 
 [[package]]
 name = "soroban-wasmi"
-version = "0.31.1-soroban.20.0.1"
+version = "0.31.1-soroban.29.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "710403de32d0e0c35375518cb995d4fc056d0d48966f2e56ea471b8cb8fc9719"
+checksum = "3c596eadd9cbbbef8a33972972bd3c482de5ad44f42a3e8f2c69be21ec8e6d00"
 dependencies = [
  "smallvec",
  "spin",
@@ -1700,7 +1751,7 @@ version = "0.0.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ee1832fb50c651ad10f734aaf5d31ca5acdfb197a6ecda64d93fcdb8885af913"
 dependencies = [
- "crate-git-revision",
+ "crate-git-revision 0.0.6",
  "data-encoding",
 ]
 
@@ -1710,21 +1761,21 @@ version = "0.0.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "084afcb0d458c3d5d5baa2d294b18f881e62cc258ef539d8fdf68be7dbe45520"
 dependencies = [
- "crate-git-revision",
+ "crate-git-revision 0.0.6",
  "data-encoding",
  "heapless",
 ]
 
 [[package]]
 name = "stellar-xdr"
-version = "25.0.0"
+version = "28.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "10d20dafed80076b227d4b17c0c508a4bbc4d5e4c3d4c1de7cd42242df4b1eaf"
+checksum = "f93d09ff8b9f919b084f664003c4c546ac66a76affd5429460dbe29f4b326f8e"
 dependencies = [
  "arbitrary",
  "base64 0.22.1",
  "cfg_eval",
- "crate-git-revision",
+ "crate-git-revision 0.0.9",
  "escape-bytes",
  "ethnum",
  "hex",
@@ -1746,17 +1797,6 @@ version = "2.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "13c2bddecc57b384dee18652358fb23172facb8a2c51ccc10d74c157bdea3292"
 
-[[package]]
-name = "syn"
-version = "1.0.109"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
-dependencies = [
- "proc-macro2",
- "quote",
- "unicode-ident",
-]
-
 [[package]]
 name = "syn"
 version = "2.0.119"
diff --git a/contracts/Cargo.toml b/contracts/Cargo.toml
index 22cd135..5c89e40 100644
--- a/contracts/Cargo.toml
+++ b/contracts/Cargo.toml
@@ -3,7 +3,7 @@ resolver = "2"
 members = ["showcase"]
 
 [workspace.dependencies]
-soroban-sdk = "25"
+soroban-sdk = "29"
 
 [profile.release]
 opt-level = "z"