diff --git a/parachain/ts-tests/common/utils/compile.ts b/parachain/ts-tests/common/utils/compile.ts
index 0e64e74467..c8ff8b8e8d 100644
--- a/parachain/ts-tests/common/utils/compile.ts
+++ b/parachain/ts-tests/common/utils/compile.ts
@@ -3,7 +3,7 @@ import solc from 'solc';
 const solcWrapper: any = solc;
 const source: string = `
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.26;
+pragma solidity ^0.8.28;
 
 contract Hello {
     string public message;
@@ -35,7 +35,11 @@ const input = {
                 '*': ['*'],
             },
         },
-        // evmVersion: "byzantium",
+        evmVersion: "london",
+        optimizer: {
+            enabled: true,
+            runs: 200
+        }
     },
 };
 const result = JSON.parse(solcWrapper.compile(JSON.stringify(input)));
diff --git a/parachain/ts-tests/package.json b/parachain/ts-tests/package.json
index 9f2722a98e..236801cee5 100644
--- a/parachain/ts-tests/package.json
+++ b/parachain/ts-tests/package.json
@@ -45,7 +45,7 @@
         "bn.js": "^5.2.1",
         "dotenv": "^16.4.5",
         "ethers": "^5.7.2",
-        "solc": "^0.8.26",
+        "solc": "^0.8.28",
         "web3": "^4.7.0",
         "web3-types": "^1.5.0",
         "web3-utils": "^4.2.2"
diff --git a/parachain/ts-tests/pnpm-lock.yaml b/parachain/ts-tests/pnpm-lock.yaml
index 0064e162eb..c0acbe15c2 100644
--- a/parachain/ts-tests/pnpm-lock.yaml
+++ b/parachain/ts-tests/pnpm-lock.yaml
@@ -39,7 +39,7 @@ dependencies:
     specifier: ^5.7.2
     version: 5.7.2
   solc:
-    specifier: ^0.8.26
+    specifier: ^0.8.28
     version: 0.8.28
   web3:
     specifier: ^4.7.0