diff --git a/package.json b/package.json
index c82ab3d..bc2131f 100644
--- a/package.json
+++ b/package.json
@@ -53,7 +53,7 @@
     "nyc": "13.0.1",
     "pg-promise": "8.4.4",
     "proxyquire": "2.1.0",
-    "sinon": "6.3.4",
+    "sinon": "6.3.5",
     "sinon-chai": "3.2.0",
     "supertest": "3.3.0"
   }