diff --git a/hardhat.config.ts b/hardhat.config.ts
index 9f01d57..4dd5dc1 100644
--- a/hardhat.config.ts
+++ b/hardhat.config.ts
@@ -5,7 +5,7 @@ import '@nomiclabs/hardhat-waffle';
 
 const config: HardhatUserConfig = {
   solidity: {
-    version: '0.8.7',
+    version: '0.8.11',
     settings: {
       optimizer: {
         enabled: true,