diff --git a/package.json b/package.json
index 01f6de7ce..cadb4d8d0 100644
--- a/package.json
+++ b/package.json
@@ -99,7 +99,7 @@
     "lerna": "^5.1.8",
     "run-with-hardhat-node": "^0.4.3",
     "solpp": "^0.11.5",
-    "truffle": "5.1.26",
+    "truffle": "5.4.33",
     "ts-node": "8.6.2",
     "ts-loader": "^9.4.4",
     "typechain": "^8.3.1",
diff --git a/packages/contracts/package.json b/packages/contracts/package.json
index c362aa4c7..aff69e770 100644
--- a/packages/contracts/package.json
+++ b/packages/contracts/package.json
@@ -29,7 +29,7 @@
     "ethers": "^5.7.2"
   },
   "devDependencies": {
-    "solc-0.8": "npm:solc@0.8.11",
+    "solc-0.8": "npm:solc@0.8.15",
     "solhint": "^3.3.2",
     "solidity-docgen": "^0.5.16",
     "ts-node": "8.6.2"
diff --git a/packages/contracts/truffle.js b/packages/contracts/truffle.js
index 43187beab..a14e9d2cf 100644
--- a/packages/contracts/truffle.js
+++ b/packages/contracts/truffle.js
@@ -16,7 +16,7 @@ module.exports = {
   contracts_directory: './solpp',
   compilers: {
     solc: {
-      version: '0.8.7',
+      version: '0.8.15',
       settings: {
         evmVersion: 'london',
         optimizer: {
diff --git a/packages/paymasters/truffle.js b/packages/paymasters/truffle.js
index 6a028e45d..e3479ac1e 100644
--- a/packages/paymasters/truffle.js
+++ b/packages/paymasters/truffle.js
@@ -32,7 +32,7 @@ module.exports = {
   },
   compilers: {
     solc: {
-      version: '0.8.7',
+      version: '0.8.15',
       settings: {
         evmVersion: 'london',
         optimizer: {
diff --git a/tsconfig.json b/tsconfig.json
index 22065cfdf..61f30e18f 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -6,6 +6,9 @@
     {
       "path": "./packages/common"
     },
+    {
+      "path": "./packages/contracts"
+    },
     {
       "path": "./packages/dev"
     },