diff --git a/polkadot/parachain/test-chains/build.sh b/polkadot/parachain/test-chains/build.sh
deleted file mode 100755
index 6bd7552661..0000000000
--- a/polkadot/parachain/test-chains/build.sh
+++ /dev/null
@@ -1,13 +0,0 @@
-#!/usr/bin/env bash
-set -e
-
-rm -rf ./target
-for i in */
-do
-  i=${i%/}
-  cd $i
-
-  RUSTFLAGS="-C link-arg=--import-memory" cargo +nightly build --target=wasm32-unknown-unknown --release --no-default-features
-  wasm-gc target/wasm32-unknown-unknown/release/$i.wasm ../../tests/res/$i.wasm
-  cd ..
-done
diff --git a/polkadot/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.compact.wasm b/polkadot/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.compact.wasm
index f86af93423..944eab3cf2 100644
Binary files a/polkadot/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.compact.wasm and b/polkadot/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.compact.wasm differ
diff --git a/polkadot/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.wasm b/polkadot/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.wasm
index f56523de59..35e3df390b 100755
Binary files a/polkadot/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.wasm and b/polkadot/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.wasm differ