diff --git a/.changeset/lazy-bears-fly.md b/.changeset/lazy-bears-fly.md
new file mode 100644
index 0000000000..9c48340efa
--- /dev/null
+++ b/.changeset/lazy-bears-fly.md
@@ -0,0 +1,5 @@
+---
+"hardhat": patch
+---
+
+Added support for Solidity 0.8.6.
diff --git a/docs/reference/solidity-support.md b/docs/reference/solidity-support.md
index 40cc44e8c9..aedf099769 100644
--- a/docs/reference/solidity-support.md
+++ b/docs/reference/solidity-support.md
@@ -13,7 +13,7 @@ These are the versions of Solidity that you can expect to fully work with Hardha
 - Any 0.5.x version starting from 0.5.1
 - Any 0.6.x version
 - Any 0.7.x version
-- Any 0.8.x version up to and including 0.8.5
+- Any 0.8.x version up to and including 0.8.6
 
 We recommend against using Hardhat with newer, unsupported versions of Solidity. But if you need to do so; please read on.
 
diff --git a/packages/hardhat-core/src/internal/hardhat-network/stack-traces/solidityTracer.ts b/packages/hardhat-core/src/internal/hardhat-network/stack-traces/solidityTracer.ts
index 148a170cde..9a10a0e31c 100644
--- a/packages/hardhat-core/src/internal/hardhat-network/stack-traces/solidityTracer.ts
+++ b/packages/hardhat-core/src/internal/hardhat-network/stack-traces/solidityTracer.ts
@@ -31,7 +31,7 @@ import {
   StackTraceEntryType,
 } from "./solidity-stack-trace";
 
-export const SUPPORTED_SOLIDITY_VERSION_RANGE = "<=0.8.5";
+export const SUPPORTED_SOLIDITY_VERSION_RANGE = "<=0.8.6";
 export const FIRST_SOLC_VERSION_SUPPORTED = "0.5.1";
 
 export class SolidityTracer {
diff --git a/packages/hardhat-core/test/fixture-projects/solidity-config-warnings/multiple-unsupported-solc.js b/packages/hardhat-core/test/fixture-projects/solidity-config-warnings/multiple-unsupported-solc.js
index 60511addee..f76c051130 100644
--- a/packages/hardhat-core/test/fixture-projects/solidity-config-warnings/multiple-unsupported-solc.js
+++ b/packages/hardhat-core/test/fixture-projects/solidity-config-warnings/multiple-unsupported-solc.js
@@ -2,10 +2,10 @@ module.exports = {
   solidity: {
     compilers: [
       {
-        version: "0.8.6",
+        version: "0.8.7",
       },
       {
-        version: "0.8.7",
+        version: "0.8.8",
       },
     ],
   },
diff --git a/packages/hardhat-core/test/fixture-projects/solidity-config-warnings/unsupported-new-solc.js b/packages/hardhat-core/test/fixture-projects/solidity-config-warnings/unsupported-new-solc.js
index f680b3981d..cdc7d0e8ae 100644
--- a/packages/hardhat-core/test/fixture-projects/solidity-config-warnings/unsupported-new-solc.js
+++ b/packages/hardhat-core/test/fixture-projects/solidity-config-warnings/unsupported-new-solc.js
@@ -1,3 +1,3 @@
 module.exports = {
-  solidity: "0.8.6",
+  solidity: "0.8.7",
 };
diff --git a/packages/hardhat-core/test/fixture-projects/solidity-config-warnings/unsupported-solc-in-override.js b/packages/hardhat-core/test/fixture-projects/solidity-config-warnings/unsupported-solc-in-override.js
index bc602fdff2..eb33770aca 100644
--- a/packages/hardhat-core/test/fixture-projects/solidity-config-warnings/unsupported-solc-in-override.js
+++ b/packages/hardhat-core/test/fixture-projects/solidity-config-warnings/unsupported-solc-in-override.js
@@ -6,7 +6,7 @@ module.exports = {
       },
     ],
     overrides: {
-      "contracts/Foo.sol": { version: "0.8.6" },
+      "contracts/Foo.sol": { version: "0.8.7" },
     },
   },
 };
diff --git a/packages/hardhat-core/test/internal/hardhat-network/provider/forked-provider.ts b/packages/hardhat-core/test/internal/hardhat-network/provider/forked-provider.ts
index b3d71931a6..eb3dae95a8 100644
--- a/packages/hardhat-core/test/internal/hardhat-network/provider/forked-provider.ts
+++ b/packages/hardhat-core/test/internal/hardhat-network/provider/forked-provider.ts
@@ -562,7 +562,7 @@ describe("Forked provider", function () {
             );
 
             assert.equal(daiAfter.toString(), expectedDai.toString());
-            assert.closeTo(ethLost, 0.5, 0.01);
+            assert.closeTo(ethLost, 0.5, 0.02);
           });
         });
       });
diff --git a/packages/hardhat-core/test/internal/hardhat-network/stack-traces/test.ts b/packages/hardhat-core/test/internal/hardhat-network/stack-traces/test.ts
index cea47eccf9..fabbf788b6 100644
--- a/packages/hardhat-core/test/internal/hardhat-network/stack-traces/test.ts
+++ b/packages/hardhat-core/test/internal/hardhat-network/stack-traces/test.ts
@@ -741,6 +741,10 @@ const solidityCompilers = [
     solidityVersion: "0.8.5",
     compilerPath: "soljson-v0.8.5+commit.a4f2e591.js",
   },
+  {
+    solidityVersion: "0.8.6",
+    compilerPath: "soljson-v0.8.6+commit.11564f7e.js",
+  },
 ];
 
 const solidity05Compilers = solidityCompilers.filter(({ solidityVersion }) =>