diff --git a/services/horizon/internal/integration/contracts/Cargo.lock b/services/horizon/internal/integration/contracts/Cargo.lock
index 07b698504d..ec405876da 100644
--- a/services/horizon/internal/integration/contracts/Cargo.lock
+++ b/services/horizon/internal/integration/contracts/Cargo.lock
@@ -919,8 +919,8 @@ checksum = "62bb4feee49fdd9f707ef802e22365a35de4b7b299de4763d44bfea899442ff9"
 
 [[package]]
 name = "soroban-env-common"
-version = "0.0.17"
-source = "git+https://github.com/stellar/rs-soroban-env?rev=eb5a9ba053a7b64a8eff605db625525378f7bea0#eb5a9ba053a7b64a8eff605db625525378f7bea0"
+version = "20.0.0-rc2"
+source = "git+https://github.com/stellar/rs-soroban-env?rev=8c63bff68a15d79aca3a705ee6916a68db57b7e6#8c63bff68a15d79aca3a705ee6916a68db57b7e6"
 dependencies = [
  "arbitrary",
  "crate-git-revision",
@@ -936,8 +936,8 @@ dependencies = [
 
 [[package]]
 name = "soroban-env-guest"
-version = "0.0.17"
-source = "git+https://github.com/stellar/rs-soroban-env?rev=eb5a9ba053a7b64a8eff605db625525378f7bea0#eb5a9ba053a7b64a8eff605db625525378f7bea0"
+version = "20.0.0-rc2"
+source = "git+https://github.com/stellar/rs-soroban-env?rev=8c63bff68a15d79aca3a705ee6916a68db57b7e6#8c63bff68a15d79aca3a705ee6916a68db57b7e6"
 dependencies = [
  "soroban-env-common",
  "static_assertions",
@@ -945,16 +945,13 @@ dependencies = [
 
 [[package]]
 name = "soroban-env-host"
-version = "0.0.17"
-source = "git+https://github.com/stellar/rs-soroban-env?rev=eb5a9ba053a7b64a8eff605db625525378f7bea0#eb5a9ba053a7b64a8eff605db625525378f7bea0"
+version = "20.0.0-rc2"
+source = "git+https://github.com/stellar/rs-soroban-env?rev=8c63bff68a15d79aca3a705ee6916a68db57b7e6#8c63bff68a15d79aca3a705ee6916a68db57b7e6"
 dependencies = [
  "backtrace",
- "curve25519-dalek",
  "ed25519-dalek",
  "getrandom",
- "hex",
  "k256",
- "log",
  "num-derive",
  "num-integer",
  "num-traits",
@@ -971,8 +968,8 @@ dependencies = [
 
 [[package]]
 name = "soroban-env-macros"
-version = "0.0.17"
-source = "git+https://github.com/stellar/rs-soroban-env?rev=eb5a9ba053a7b64a8eff605db625525378f7bea0#eb5a9ba053a7b64a8eff605db625525378f7bea0"
+version = "20.0.0-rc2"
+source = "git+https://github.com/stellar/rs-soroban-env?rev=8c63bff68a15d79aca3a705ee6916a68db57b7e6#8c63bff68a15d79aca3a705ee6916a68db57b7e6"
 dependencies = [
  "itertools",
  "proc-macro2",
@@ -992,8 +989,8 @@ dependencies = [
 
 [[package]]
 name = "soroban-ledger-snapshot"
-version = "0.9.2"
-source = "git+https://github.com/stellar/rs-soroban-sdk?rev=18b8fa1a358aa84afd196e2f6d44942798c8f335#18b8fa1a358aa84afd196e2f6d44942798c8f335"
+version = "20.0.0-rc2"
+source = "git+https://github.com/stellar/rs-soroban-sdk?rev=0992413f9b05e5bfb1f872bce99e89d9129b2e61#0992413f9b05e5bfb1f872bce99e89d9129b2e61"
 dependencies = [
  "serde",
  "serde_json",
@@ -1004,8 +1001,8 @@ dependencies = [
 
 [[package]]
 name = "soroban-native-sdk-macros"
-version = "0.0.17"
-source = "git+https://github.com/stellar/rs-soroban-env?rev=eb5a9ba053a7b64a8eff605db625525378f7bea0#eb5a9ba053a7b64a8eff605db625525378f7bea0"
+version = "20.0.0-rc2"
+source = "git+https://github.com/stellar/rs-soroban-env?rev=8c63bff68a15d79aca3a705ee6916a68db57b7e6#8c63bff68a15d79aca3a705ee6916a68db57b7e6"
 dependencies = [
  "itertools",
  "proc-macro2",
@@ -1022,8 +1019,8 @@ dependencies = [
 
 [[package]]
 name = "soroban-sdk"
-version = "0.9.2"
-source = "git+https://github.com/stellar/rs-soroban-sdk?rev=18b8fa1a358aa84afd196e2f6d44942798c8f335#18b8fa1a358aa84afd196e2f6d44942798c8f335"
+version = "20.0.0-rc2"
+source = "git+https://github.com/stellar/rs-soroban-sdk?rev=0992413f9b05e5bfb1f872bce99e89d9129b2e61#0992413f9b05e5bfb1f872bce99e89d9129b2e61"
 dependencies = [
  "arbitrary",
  "bytes-lit",
@@ -1039,8 +1036,8 @@ dependencies = [
 
 [[package]]
 name = "soroban-sdk-macros"
-version = "0.9.2"
-source = "git+https://github.com/stellar/rs-soroban-sdk?rev=18b8fa1a358aa84afd196e2f6d44942798c8f335#18b8fa1a358aa84afd196e2f6d44942798c8f335"
+version = "20.0.0-rc2"
+source = "git+https://github.com/stellar/rs-soroban-sdk?rev=0992413f9b05e5bfb1f872bce99e89d9129b2e61#0992413f9b05e5bfb1f872bce99e89d9129b2e61"
 dependencies = [
  "crate-git-revision",
  "darling",
@@ -1058,8 +1055,8 @@ dependencies = [
 
 [[package]]
 name = "soroban-spec"
-version = "0.9.2"
-source = "git+https://github.com/stellar/rs-soroban-sdk?rev=18b8fa1a358aa84afd196e2f6d44942798c8f335#18b8fa1a358aa84afd196e2f6d44942798c8f335"
+version = "20.0.0-rc2"
+source = "git+https://github.com/stellar/rs-soroban-sdk?rev=0992413f9b05e5bfb1f872bce99e89d9129b2e61#0992413f9b05e5bfb1f872bce99e89d9129b2e61"
 dependencies = [
  "base64 0.13.1",
  "stellar-xdr",
@@ -1069,8 +1066,8 @@ dependencies = [
 
 [[package]]
 name = "soroban-spec-rust"
-version = "0.9.2"
-source = "git+https://github.com/stellar/rs-soroban-sdk?rev=18b8fa1a358aa84afd196e2f6d44942798c8f335#18b8fa1a358aa84afd196e2f6d44942798c8f335"
+version = "20.0.0-rc2"
+source = "git+https://github.com/stellar/rs-soroban-sdk?rev=0992413f9b05e5bfb1f872bce99e89d9129b2e61#0992413f9b05e5bfb1f872bce99e89d9129b2e61"
 dependencies = [
  "prettyplease",
  "proc-macro2",
@@ -1084,8 +1081,8 @@ dependencies = [
 
 [[package]]
 name = "soroban-wasmi"
-version = "0.30.0-soroban"
-source = "git+https://github.com/stellar/wasmi?rev=284c963ba080703061797e2a3cba0853edee0dd4#284c963ba080703061797e2a3cba0853edee0dd4"
+version = "0.31.0-soroban1"
+source = "git+https://github.com/stellar/wasmi?rev=7e63b4c9e08c4163f417d118d81f7ea34789d0be#7e63b4c9e08c4163f417d118d81f7ea34789d0be"
 dependencies = [
  "smallvec",
  "spin",
@@ -1134,8 +1131,8 @@ dependencies = [
 
 [[package]]
 name = "stellar-xdr"
-version = "0.0.17"
-source = "git+https://github.com/stellar/rs-stellar-xdr?rev=39904e09941046dab61e6e35fc89e31bf2dea1cd#39904e09941046dab61e6e35fc89e31bf2dea1cd"
+version = "20.0.0-rc1"
+source = "git+https://github.com/stellar/rs-stellar-xdr?rev=d5ce0c9e7aa83461773a6e81662067f35d39e4c1#d5ce0c9e7aa83461773a6e81662067f35d39e4c1"
 dependencies = [
  "arbitrary",
  "base64 0.13.1",
@@ -1297,12 +1294,12 @@ checksum = "ca6ad05a4870b2bf5fe995117d3728437bd27d7cd5f06f13c17443ef369775a1"
 [[package]]
 name = "wasmi_arena"
 version = "0.4.0"
-source = "git+https://github.com/stellar/wasmi?rev=284c963ba080703061797e2a3cba0853edee0dd4#284c963ba080703061797e2a3cba0853edee0dd4"
+source = "git+https://github.com/stellar/wasmi?rev=7e63b4c9e08c4163f417d118d81f7ea34789d0be#7e63b4c9e08c4163f417d118d81f7ea34789d0be"
 
 [[package]]
 name = "wasmi_core"
-version = "0.12.0"
-source = "git+https://github.com/stellar/wasmi?rev=284c963ba080703061797e2a3cba0853edee0dd4#284c963ba080703061797e2a3cba0853edee0dd4"
+version = "0.13.0"
+source = "git+https://github.com/stellar/wasmi?rev=7e63b4c9e08c4163f417d118d81f7ea34789d0be#7e63b4c9e08c4163f417d118d81f7ea34789d0be"
 dependencies = [
  "downcast-rs",
  "libm",
diff --git a/services/horizon/internal/integration/contracts/Cargo.toml b/services/horizon/internal/integration/contracts/Cargo.toml
index 7e413dfed7..1c65ebeb4d 100644
--- a/services/horizon/internal/integration/contracts/Cargo.toml
+++ b/services/horizon/internal/integration/contracts/Cargo.toml
@@ -22,6 +22,6 @@ codegen-units = 1
 lto = true
 
 [workspace.dependencies.soroban-sdk]
-version = "20.0.0-rc1"
+version = "20.0.0-rc2"
 git = "https://github.com/stellar/rs-soroban-sdk"
-rev = "f743d6f9e49caa08924318907cd0588b60d7f187"
+rev = "0992413f9b05e5bfb1f872bce99e89d9129b2e61"
diff --git a/services/horizon/internal/integration/testdata/soroban_add_u64.wasm b/services/horizon/internal/integration/testdata/soroban_add_u64.wasm
index 638cf8f7c0..d8707674da 100755
Binary files a/services/horizon/internal/integration/testdata/soroban_add_u64.wasm and b/services/horizon/internal/integration/testdata/soroban_add_u64.wasm differ
diff --git a/services/horizon/internal/integration/testdata/soroban_increment_contract.wasm b/services/horizon/internal/integration/testdata/soroban_increment_contract.wasm
index aa304ecb1d..37c5933e7c 100755
Binary files a/services/horizon/internal/integration/testdata/soroban_increment_contract.wasm and b/services/horizon/internal/integration/testdata/soroban_increment_contract.wasm differ
diff --git a/services/horizon/internal/integration/testdata/soroban_sac_test.wasm b/services/horizon/internal/integration/testdata/soroban_sac_test.wasm
index 48e2fcb1cc..2beae584d6 100755
Binary files a/services/horizon/internal/integration/testdata/soroban_sac_test.wasm and b/services/horizon/internal/integration/testdata/soroban_sac_test.wasm differ