diff --git a/package.json b/package.json
index cc78787..3cba6ba 100644
--- a/package.json
+++ b/package.json
@@ -49,12 +49,11 @@
     "ecc-jsbn": "~0.1.1",
     "bcrypt-pbkdf": "^1.0.0"
   },
-  "optionalDependencies": {
-  },
+  "optionalDependencies": {},
   "devDependencies": {
     "tape": "^3.5.0",
     "benchmark": "^1.0.0",
-    "sinon": "^1.17.2",
+    "sinon": "^8.1.1",
     "temp": "^0.8.2"
   }
 }
diff --git a/test/dhe_compat.js b/test/dhe_compat.js
index 59c2cdf..c521a78 100644
--- a/test/dhe_compat.js
+++ b/test/dhe_compat.js
@@ -23,7 +23,7 @@ var testDir = path.join(__dirname, 'assets');
 var sandbox;
 
 test('set up sandbox', function (t) {
-	sandbox = sinon.sandbox.create();
+	sandbox = sinon.createSandbox();
 	sandbox.stub(crypto, 'createECDH');
 	t.ok(crypto.createECDH('prime256v1') === undefined);