diff --git a/Cargo.lock b/Cargo.lock
index eb1f805474..4b15c29b1b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -854,15 +854,6 @@ version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "98cc8fbded0c607b7ba9dd60cd98df59af97e84d24e49c8557331cfc26d301ce"
 
-[[package]]
-name = "cmake"
-version = "0.1.50"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a31c789563b815f77f4250caee12365734369f942439b7defd71e18a48197130"
-dependencies = [
- "cc",
-]
-
 [[package]]
 name = "color-eyre"
 version = "0.6.3"
@@ -1079,7 +1070,7 @@ dependencies = [
  "itertools 0.10.5",
  "log",
  "smallvec",
- "wasmparser",
+ "wasmparser 0.102.0",
  "wasmtime-types",
 ]
 
@@ -1962,12 +1953,6 @@ version = "0.28.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4271d37baee1b8c7e4b708028c57d816cf9d2434acb33a549475f78c181f6253"
 
-[[package]]
-name = "glob"
-version = "0.2.11"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8be18de09a56b60ed0edf84bc9df007e30040691af7acd1c41874faac5895bfb"
-
 [[package]]
 name = "glob"
 version = "0.3.1"
@@ -2043,7 +2028,7 @@ dependencies = [
  "futures-core",
  "futures-sink",
  "http",
- "indexmap 2.2.6",
+ "indexmap 2.8.0",
  "slab",
  "tokio",
  "tokio-util",
@@ -2101,6 +2086,12 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "hashbrown"
+version = "0.15.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bf151400ff0baff5465007dd2f3e717f3fe502074ca563069ce3a6629d07b289"
+
 [[package]]
 name = "heck"
 version = "0.5.0"
@@ -2371,12 +2362,12 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "2.2.6"
+version = "2.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "168fb715dda47215e360912c096649d23d58bf392ac62f73919e831745e40f26"
+checksum = "3954d50fe15b02142bf25d3b8bdadb634ec3948f103d04ffe3031bc8fe9d7058"
 dependencies = [
  "equivalent",
- "hashbrown 0.14.5",
+ "hashbrown 0.15.2",
 ]
 
 [[package]]
@@ -2436,7 +2427,7 @@ dependencies = [
  "tokio",
  "tracing",
  "tracing-subscriber",
- "wabt",
+ "wat",
 ]
 
 [[package]]
@@ -2727,6 +2718,12 @@ version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
+[[package]]
+name = "leb128fmt"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "09edd9e8b54e49e587e4f6295a7d29c3ea94d469cb40ab8ca70b288248a81db2"
+
 [[package]]
 name = "libc"
 version = "0.2.169"
@@ -5750,7 +5747,7 @@ version = "0.21.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6a8534fd7f78b5405e860340ad6575217ce99f38d4d5c8f2442cb5ecb50090e1"
 dependencies = [
- "indexmap 2.2.6",
+ "indexmap 2.8.0",
  "toml_datetime",
  "winnow 0.5.40",
 ]
@@ -5761,7 +5758,7 @@ version = "0.22.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d3328d4f68a705b2a4498da1d580585d39a6510f98318a2cec3018a7ec61ddef"
 dependencies = [
- "indexmap 2.2.6",
+ "indexmap 2.8.0",
  "serde",
  "serde_spanned",
  "toml_datetime",
@@ -5902,7 +5899,7 @@ version = "1.0.99"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "207aa50d36c4be8d8c6ea829478be44a372c6a77669937bb39c698e52f1491e8"
 dependencies = [
- "glob 0.3.1",
+ "glob",
  "serde",
  "serde_derive",
  "serde_json",
@@ -5988,6 +5985,12 @@ dependencies = [
  "tinyvec",
 ]
 
+[[package]]
+name = "unicode-width"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1fc81956842c57dac11422a97c3b8195a1ff727f06e85c84ed2e8aa277c9a0fd"
+
 [[package]]
 name = "unicode-xid"
 version = "0.2.4"
@@ -6083,29 +6086,6 @@ dependencies = [
  "zeroize",
 ]
 
-[[package]]
-name = "wabt"
-version = "0.10.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "00bef93d5e6c81a293bccf107cf43aa47239382f455ba14869d36695d8963b9c"
-dependencies = [
- "serde",
- "serde_derive",
- "serde_json",
- "wabt-sys",
-]
-
-[[package]]
-name = "wabt-sys"
-version = "0.8.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1a4e043159f63e16986e713e9b5e1c06043df4848565bf672e27c523864c7791"
-dependencies = [
- "cc",
- "cmake",
- "glob 0.2.11",
-]
-
 [[package]]
 name = "wait-timeout"
 version = "0.2.0"
@@ -6207,6 +6187,16 @@ version = "0.2.93"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c62a0a307cb4a311d3a07867860911ca130c3494e8c2719593806c08bc5d0484"
 
+[[package]]
+name = "wasm-encoder"
+version = "0.228.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05d30290541f2d4242a162bbda76b8f2d8b1ac59eab3568ed6f2327d52c9b2c4"
+dependencies = [
+ "leb128fmt",
+ "wasmparser 0.228.0",
+]
+
 [[package]]
 name = "wasm-instrument"
 version = "0.4.0"
@@ -6266,6 +6256,17 @@ dependencies = [
  "url",
 ]
 
+[[package]]
+name = "wasmparser"
+version = "0.228.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4abf1132c1fdf747d56bbc1bb52152400c70f336870f968b85e89ea422198ae3"
+dependencies = [
+ "bitflags 2.5.0",
+ "indexmap 2.8.0",
+ "semver",
+]
+
 [[package]]
 name = "wasmparser-nostd"
 version = "0.100.2"
@@ -6294,7 +6295,7 @@ dependencies = [
  "rayon",
  "serde",
  "target-lexicon",
- "wasmparser",
+ "wasmparser 0.102.0",
  "wasmtime-cache",
  "wasmtime-cranelift",
  "wasmtime-environ",
@@ -6349,7 +6350,7 @@ dependencies = [
  "object 0.30.4",
  "target-lexicon",
  "thiserror 1.0.64",
- "wasmparser",
+ "wasmparser 0.102.0",
  "wasmtime-cranelift-shared",
  "wasmtime-environ",
 ]
@@ -6384,7 +6385,7 @@ dependencies = [
  "serde",
  "target-lexicon",
  "thiserror 1.0.64",
- "wasmparser",
+ "wasmparser 0.102.0",
  "wasmtime-types",
 ]
 
@@ -6467,7 +6468,29 @@ dependencies = [
  "cranelift-entity",
  "serde",
  "thiserror 1.0.64",
- "wasmparser",
+ "wasmparser 0.102.0",
+]
+
+[[package]]
+name = "wast"
+version = "228.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9e5aae124478cb51439f6587f074a3a5e835afd22751c59a87b2e2a882727c97"
+dependencies = [
+ "bumpalo",
+ "leb128fmt",
+ "memchr",
+ "unicode-width",
+ "wasm-encoder",
+]
+
+[[package]]
+name = "wat"
+version = "1.228.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7ec29c89a8d055df988de7236483bf569988ac3d6905899f6af5ef920f9385ad"
+dependencies = [
+ "wast",
 ]
 
 [[package]]
diff --git a/Cargo.toml b/Cargo.toml
index 89db11429e..30910b9f6c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -112,7 +112,7 @@ tracing-wasm = "0.2.1"
 tracing-subscriber = { version = "0.3.18", features = ["env-filter"] }
 trybuild = "1.0.99"
 url = "2.5.2"
-wabt = "0.10.0"
+wat = "1.228.0"
 wasm-bindgen-test = "0.3.24"
 which = "6.0.3"
 strip-ansi-escapes = "0.2.0"
diff --git a/testing/integration-tests/Cargo.toml b/testing/integration-tests/Cargo.toml
index 767b758e8b..400c4e3a6c 100644
--- a/testing/integration-tests/Cargo.toml
+++ b/testing/integration-tests/Cargo.toml
@@ -46,7 +46,7 @@ test-runtime = { workspace = true }
 tokio = { workspace = true }
 tracing = { workspace = true }
 tracing-subscriber = { workspace = true }
-wabt = { workspace = true }
+wat = { workspace = true }
 substrate-runner = { workspace = true }
 subxt-test-macro = { path = "subxt-test-macro" }
 
diff --git a/testing/integration-tests/src/full_client/frame/contracts.rs b/testing/integration-tests/src/full_client/frame/contracts.rs
index 2bf39cbefe..f2f942b147 100644
--- a/testing/integration-tests/src/full_client/frame/contracts.rs
+++ b/testing/integration-tests/src/full_client/frame/contracts.rs
@@ -47,7 +47,7 @@ impl ContractsTestContext {
     }
 
     async fn upload_code(&self) -> Result<Hash, Error> {
-        let code = wabt::wat2wasm(CONTRACT).expect("invalid wabt");
+        let code = wat::parse_str(CONTRACT).expect("invalid wat");
 
         let upload_tx =
             node_runtime::tx()
@@ -74,8 +74,7 @@ impl ContractsTestContext {
     }
 
     async fn instantiate_with_code(&self) -> Result<(Hash, AccountId), Error> {
-        tracing::info!("instantiate_with_code:");
-        let code = wabt::wat2wasm(CONTRACT).expect("invalid wabt");
+        let code = wat::parse_str(CONTRACT).expect("invalid wat");
 
         let instantiate_tx = node_runtime::tx().contracts().instantiate_with_code(
             100_000_000_000_000_000, // endowment