diff --git a/contracts/Cargo.lock b/contracts/Cargo.lock
index 2853536..e7dbc81 100644
--- a/contracts/Cargo.lock
+++ b/contracts/Cargo.lock
@@ -1347,9 +1347,9 @@ checksum = "8ed6a63f02c8539c91a8685a86f4099661ba3da017932f6ebbea6de3f0fa7c90"
 
 [[package]]
 name = "soroban-builtin-sdk-macros"
-version = "27.0.1"
+version = "28.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b77bc93d930032c487cb1506b6ed166b2af49db76d52678ec4887ac621ecce01"
+checksum = "86ffd329211a50add3965a8f4a8f70e24fc5c8268c945566ab963029b12dce40"
 dependencies = [
  "itertools",
  "proc-macro2",
@@ -1359,12 +1359,12 @@ dependencies = [
 
 [[package]]
 name = "soroban-env-common"
-version = "27.0.1"
+version = "28.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6b22e9981cdd444f3aa6734bc58d76195bf7eca3ccf1dd432b875af5d02da068"
+checksum = "610bb12ee937a56c2b629f8eb16efb7e47607cba4e79ab0c24132b9a53dd19a0"
 dependencies = [
  "arbitrary",
- "crate-git-revision 0.0.6",
+ "crate-git-revision 0.0.9",
  "ethnum",
  "num-derive",
  "num-traits",
@@ -1378,9 +1378,9 @@ dependencies = [
 
 [[package]]
 name = "soroban-env-guest"
-version = "27.0.1"
+version = "28.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2b6072f99ca6bf8e8d5b04e05d083dac785e5357d9c0f36a6658f819c2fd7d67"
+checksum = "7d383176b27bb286f718ab0ff5713bd9b01132089151266359bd9b20f38684cf"
 dependencies = [
  "soroban-env-common",
  "static_assertions",
@@ -1388,9 +1388,9 @@ dependencies = [
 
 [[package]]
 name = "soroban-env-host"
-version = "27.0.1"
+version = "28.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2c06afd7c75ce150ce53e4d77a77645b18e3fb61856a0ddc42bfcecdc39fa3b9"
+checksum = "36d7e5920c200939164cc58038224e2d90d7e2fabbfa505d6e2129d648dce7e2"
 dependencies = [
  "ark-bls12-381",
  "ark-bn254",
@@ -1425,9 +1425,9 @@ dependencies = [
 
 [[package]]
 name = "soroban-env-macros"
-version = "27.0.1"
+version = "28.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "647811bdd28a3ec40296987f6635781e5e1141c8f5affbbd53ba12b6295b7bb6"
+checksum = "077600bb175ea54592c1ac5983b8fb34ec9ab7a65f298af11d687b61e9d646a4"
 dependencies = [
  "itertools",
  "proc-macro2",
@@ -1440,9 +1440,9 @@ dependencies = [
 
 [[package]]
 name = "soroban-ledger-snapshot"
-version = "27.0.6"
+version = "28.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b59883d8bd0d1aed8d57579a9974ab88eaf787dd0a1af104f6881b5707450558"
+checksum = "b5caeb0a4c8af6d04dc1dfbf96199e0d50ae086c7d54c9001abe78bb891fc44f"
 dependencies = [
  "serde",
  "serde_json",
@@ -1454,9 +1454,9 @@ dependencies = [
 
 [[package]]
 name = "soroban-sdk"
-version = "27.0.6"
+version = "28.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6c3f21971c84fcfb08957e3e8f5a9a70f134cb07ad9ee053ac7e6d7a887a82af"
+checksum = "e4946477e75667215a25b652b0febb446485686c944d364c117c903e3fb98bab"
 dependencies = [
  "arbitrary",
  "bytes-lit",
@@ -1478,9 +1478,9 @@ dependencies = [
 
 [[package]]
 name = "soroban-sdk-macros"
-version = "27.0.6"
+version = "28.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3bd4a847273d749807fe2eb52e2b9c1917ee482cd6a39465cad5c389548996ad"
+checksum = "168f2d2c3fd4da57584c71e0a8315a8e656486495bc53e18c93b8ec4db085438"
 dependencies = [
  "darling 0.20.11",
  "heck",
@@ -1498,9 +1498,9 @@ dependencies = [
 
 [[package]]
 name = "soroban-spec"
-version = "27.0.6"
+version = "28.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "473404322827b285cbcd87517f365986bd63af7842c78b2a86ee061715fda61e"
+checksum = "2f48c8e183fc140ccd89e1fe1663cc605fb18641967c0bb591f64887599fde59"
 dependencies = [
  "base64",
  "sha2",
@@ -1511,9 +1511,9 @@ dependencies = [
 
 [[package]]
 name = "soroban-spec-rust"
-version = "27.0.6"
+version = "28.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2f25698b6ce2125850a9ef075cf9ba1e8d25b4cfa0c46aca42dadd80cc29d881"
+checksum = "40cd0021887fd047e9f63cea36da35b202881bc0e0dbcc067a146137ca46f192"
 dependencies = [
  "prettyplease",
  "proc-macro2",
@@ -1589,14 +1589,14 @@ dependencies = [
 
 [[package]]
 name = "stellar-xdr"
-version = "27.0.0"
+version = "28.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05ff843326969bdf1ef673dcdba94c08f4a3c8f1e58d6e6ef39b1bd4f749179a"
+checksum = "f93d09ff8b9f919b084f664003c4c546ac66a76affd5429460dbe29f4b326f8e"
 dependencies = [
  "arbitrary",
  "base64",
  "cfg_eval",
- "crate-git-revision 0.0.6",
+ "crate-git-revision 0.0.9",
  "escape-bytes",
  "ethnum",
  "hex",
diff --git a/contracts/Cargo.toml b/contracts/Cargo.toml
index db8aae1..a0a37dc 100644
--- a/contracts/Cargo.toml
+++ b/contracts/Cargo.toml
@@ -5,7 +5,7 @@ members = [
 ]
 
 [workspace.dependencies]
-soroban-sdk = "27"
+soroban-sdk = "28"
 
 [profile.release]
 opt-level = "z"