diff --git a/Cargo.lock b/Cargo.lock
index 842cc0f..22aed66 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -204,6 +204,12 @@ version = "3.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1628fb46dfa0b37568d12e5edd512553eccf6a22a78e8bde00bb4aed84d5bdbf"
 
+[[package]]
+name = "byteorder"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
+
 [[package]]
 name = "bytes-lit"
 version = "0.0.5"
@@ -437,12 +443,12 @@ dependencies = [
 
 [[package]]
 name = "deranged"
-version = "0.4.0"
+version = "0.5.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c9e6a11ca8224451684bc0d7d5a7adbf8f2fd6887261a1cfc3c0432f9d4068e"
+checksum = "7cd812cc2bc1d69d4764bd80df88b4317eaef9e773c75226407d9bc0876b211c"
 dependencies = [
  "powerfmt",
- "serde",
+ "serde_core",
 ]
 
 [[package]]
@@ -659,7 +665,16 @@ version = "0.0.1"
 dependencies = [
  "soroban-sdk",
  "stellar-registry",
- "stellar-xdr",
+ "stellar-xdr 25.0.1",
+]
+
+[[package]]
+name = "hash32"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "47d60b12902ba28e2730cd37e95b8c9223af2808df9e902d4df49588d1470606"
+dependencies = [
+ "byteorder",
 ]
 
 [[package]]
@@ -683,6 +698,16 @@ version = "0.15.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "84b26c544d002229e640969970a2e74021aadf6e2f96372b9c58eff97de08eb3"
 
+[[package]]
+name = "heapless"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0bfb9eb618601c89945a70e254898da93b13be0388091d42117462b265bb3fad"
+dependencies = [
+ "hash32",
+ "stable_deref_trait",
+]
+
 [[package]]
 name = "heck"
 version = "0.5.0"
@@ -810,9 +835,9 @@ dependencies = [
 
 [[package]]
 name = "keccak"
-version = "0.1.5"
+version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ecc2af9a1119c51f12a14607e783cb977bde58bc069ff0c3da1095e635d70654"
+checksum = "cb26cec98cce3a3d96cbb7bced3c4b16e3d13f27ec56dbd62cbc8f39cfb9d653"
 dependencies = [
  "cpufeatures",
 ]
@@ -873,9 +898,9 @@ dependencies = [
 
 [[package]]
 name = "num-conv"
-version = "0.1.0"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "51d515d32fb182ee37cda2ccdcb92950d6a3c2893aa280e540671c2cd0f3b1d9"
+checksum = "cf97ec579c3c42f953ef76dbf8d55ac91fb219dde70e49aa4a6b7d74e9919050"
 
 [[package]]
 name = "num-derive"
@@ -1258,7 +1283,7 @@ dependencies = [
  "soroban-env-macros",
  "soroban-wasmi",
  "static_assertions",
- "stellar-xdr",
+ "stellar-xdr 23.0.0",
  "wasmparser",
 ]
 
@@ -1304,7 +1329,7 @@ dependencies = [
  "soroban-env-common",
  "soroban-wasmi",
  "static_assertions",
- "stellar-strkey",
+ "stellar-strkey 0.0.13",
  "wasmparser",
 ]
 
@@ -1319,15 +1344,15 @@ dependencies = [
  "quote",
  "serde",
  "serde_json",
- "stellar-xdr",
+ "stellar-xdr 23.0.0",
  "syn 2.0.101",
 ]
 
 [[package]]
 name = "soroban-ledger-snapshot"
-version = "23.1.0"
+version = "23.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "004e0cdfd01c073e23d28813625bd77b9a6a0dc35c65920323e75450f1bfe400"
+checksum = "8d23caecfbd1b83c687e725611618d2a54f551900edde324da42d0fb67d2adf5"
 dependencies = [
  "serde",
  "serde_json",
@@ -1339,9 +1364,9 @@ dependencies = [
 
 [[package]]
 name = "soroban-sdk"
-version = "23.1.0"
+version = "23.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d605064e7c7c08474a750496b256d051ac568aa072254e3b77e080fab99e3fb7"
+checksum = "fa370dd21a583562b0799ca751942cbf85f7c3bc2cf64d01192e2a833818ec70"
 dependencies = [
  "arbitrary",
  "bytes-lit",
@@ -1357,14 +1382,15 @@ dependencies = [
  "soroban-env-host",
  "soroban-ledger-snapshot",
  "soroban-sdk-macros",
- "stellar-strkey",
+ "stellar-strkey 0.0.16",
+ "visibility",
 ]
 
 [[package]]
 name = "soroban-sdk-macros"
-version = "23.1.0"
+version = "23.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "611c1b3118d118852cb0b7c0e702b63dbb54de213d0ef9da354650786656b499"
+checksum = "eb8f0e8d1ece50d4beae8d11a2c1c0ec43a1c539fbbbe4bcf6e07387e8a0f0a3"
 dependencies = [
  "darling",
  "heck",
@@ -1376,34 +1402,34 @@ dependencies = [
  "soroban-env-common",
  "soroban-spec",
  "soroban-spec-rust",
- "stellar-xdr",
+ "stellar-xdr 23.0.0",
  "syn 2.0.101",
 ]
 
 [[package]]
 name = "soroban-spec"
-version = "23.1.0"
+version = "23.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "829e617c2a6e7293f31a9d8f74f543f102f57510fe13a1da38e37a0481fc2e88"
+checksum = "2bc4fef2cad410563bbd56f9fa68731268f89e90a4d7e6c4d62adb45c0b4c571"
 dependencies = [
  "base64",
- "stellar-xdr",
+ "stellar-xdr 23.0.0",
  "thiserror",
  "wasmparser",
 ]
 
 [[package]]
 name = "soroban-spec-rust"
-version = "23.1.0"
+version = "23.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "23a7f15c7e8fc5216df7e431d134e5298886d125b842fb0861b8f42095992a5c"
+checksum = "6d106b87a159334f96995fd4441e947a15d845a43613c8a5a75c8f474f44a548"
 dependencies = [
  "prettyplease",
  "proc-macro2",
  "quote",
  "sha2",
  "soroban-spec",
- "stellar-xdr",
+ "stellar-xdr 23.0.0",
  "syn 2.0.101",
  "thiserror",
 ]
@@ -1437,6 +1463,12 @@ dependencies = [
  "der",
 ]
 
+[[package]]
+name = "stable_deref_trait"
+version = "1.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6ce2be8dc25455e1f91df71bfa12ad37d7af1092ae736f3a6cd0e37bc7810596"
+
 [[package]]
 name = "static_assertions"
 version = "1.1.0"
@@ -1501,8 +1533,8 @@ dependencies = [
  "regex",
  "sha2",
  "stellar-build",
- "stellar-strkey",
- "stellar-xdr",
+ "stellar-strkey 0.0.13",
+ "stellar-xdr 23.0.0",
  "syn 2.0.101",
 ]
 
@@ -1516,6 +1548,17 @@ dependencies = [
  "data-encoding",
 ]
 
+[[package]]
+name = "stellar-strkey"
+version = "0.0.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "084afcb0d458c3d5d5baa2d294b18f881e62cc258ef539d8fdf68be7dbe45520"
+dependencies = [
+ "crate-git-revision",
+ "data-encoding",
+ "heapless",
+]
+
 [[package]]
 name = "stellar-tokens"
 version = "0.5.1"
@@ -1541,7 +1584,24 @@ dependencies = [
  "serde",
  "serde_with",
  "sha2",
- "stellar-strkey",
+ "stellar-strkey 0.0.13",
+]
+
+[[package]]
+name = "stellar-xdr"
+version = "25.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1f8116e81c7b5c1313a21396581aa9c2ff0f4033cc29a695f3f816ee882dd66b"
+dependencies = [
+ "cfg_eval",
+ "crate-git-revision",
+ "escape-bytes",
+ "ethnum",
+ "hex",
+ "serde",
+ "serde_with",
+ "sha2",
+ "stellar-strkey 0.0.13",
 ]
 
 [[package]]
@@ -1600,30 +1660,30 @@ dependencies = [
 
 [[package]]
 name = "time"
-version = "0.3.41"
+version = "0.3.47"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8a7619e19bc266e0f9c5e6686659d394bc57973859340060a69221e57dbc0c40"
+checksum = "743bd48c283afc0388f9b8827b976905fb217ad9e647fae3a379a9283c4def2c"
 dependencies = [
  "deranged",
  "itoa",
  "num-conv",
  "powerfmt",
- "serde",
+ "serde_core",
  "time-core",
  "time-macros",
 ]
 
 [[package]]
 name = "time-core"
-version = "0.1.4"
+version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c9e9a38711f559d9e3ce1cdb06dd7c5b8ea546bc90052da6d06bb76da74bb07c"
+checksum = "7694e1cfe791f8d31026952abf09c69ca6f6fa4e1a1229e18988f06a04a12dca"
 
 [[package]]
 name = "time-macros"
-version = "0.2.22"
+version = "0.2.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3526739392ec93fd8b359c8e98514cb3e8e021beb4e5f597b00a0221f8ed8a49"
+checksum = "2e70e4c5a0e0a8a4823ad65dfe1a6930e4f4d756dcd9dd7939022b5e8c501215"
 dependencies = [
  "num-conv",
  "time-core",
@@ -1653,6 +1713,17 @@ version = "0.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
 
+[[package]]
+name = "visibility"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d674d135b4a8c1d7e813e2f8d1c9a58308aee4a680323066025e53132218bd91"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.101",
+]
+
 [[package]]
 name = "wasi"
 version = "0.11.0+wasi-snapshot-preview1"
diff --git a/Cargo.toml b/Cargo.toml
index aae4e3a..efdddca 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,7 +10,7 @@ repository = "https://github.com/theahaco/scaffold-stellar"
 version = "0.0.1"
 
 [workspace.dependencies.soroban-sdk]
-version = "23.1.0"
+version = "23.5.1"
 
 [workspace.dependencies.stellar-access]
 git = "https://github.com/OpenZeppelin/stellar-contracts"
diff --git a/contracts/guess-the-number/Cargo.toml b/contracts/guess-the-number/Cargo.toml
index cecf81b..7506fd6 100644
--- a/contracts/guess-the-number/Cargo.toml
+++ b/contracts/guess-the-number/Cargo.toml
@@ -16,9 +16,9 @@ crate-type = ["cdylib"]
 doctest = false
 
 [dependencies]
-soroban-sdk = "23.0.3"
+soroban-sdk = "23.5.1"
 stellar-registry = "0.0.4"
 
 [dev-dependencies]
-stellar-xdr = { version = "23.0.0", features = ["curr", "serde"] }
-soroban-sdk = { version = "23.0.3", features = ["testutils"] }
+stellar-xdr = { version = "25.0.1", features = ["curr", "serde"] }
+soroban-sdk = { version = "23.5.1", features = ["testutils"] }