diff --git a/package-lock.json b/package-lock.json
index a08973f..c2c0fc9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -86,10 +86,13 @@
       "dev": true
     },
     "@types/sinon": {
-      "version": "7.0.11",
-      "resolved": "https://registry.npmjs.org/@types/sinon/-/sinon-7.0.11.tgz",
-      "integrity": "sha512-6ee09Ugx6GyEr0opUIakmxIWFNmqYPjkqa3/BuxCBokA0klsOLPgMD5K4q40lH7/yZVuJVzOfQpd7pipwjngkQ==",
-      "dev": true
+      "version": "9.0.0",
+      "resolved": "https://registry.npmjs.org/@types/sinon/-/sinon-9.0.0.tgz",
+      "integrity": "sha512-v2TkYHkts4VXshMkcmot/H+ERZ2SevKa10saGaJPGCJ8vh3lKrC4u663zYEeRZxep+VbG6YRDtQ6gVqw9dYzPA==",
+      "dev": true,
+      "requires": {
+        "@types/sinonjs__fake-timers": "*"
+      }
     },
     "@types/sinon-chai": {
       "version": "3.2.2",
@@ -101,6 +104,12 @@
         "@types/sinon": "*"
       }
     },
+    "@types/sinonjs__fake-timers": {
+      "version": "6.0.1",
+      "resolved": "https://registry.npmjs.org/@types/sinonjs__fake-timers/-/sinonjs__fake-timers-6.0.1.tgz",
+      "integrity": "sha512-yYezQwGWty8ziyYLdZjwxyMb0CZR49h8JALHGrxjQHWlqGgc8kLdHEgWrgL0uZ29DMvEVBDnHU2Wg36zKSIUtA==",
+      "dev": true
+    },
     "@webassemblyjs/ast": {
       "version": "1.8.5",
       "resolved": "https://registry.npmjs.org/@webassemblyjs/ast/-/ast-1.8.5.tgz",
diff --git a/package.json b/package.json
index 21b7e39..d0c3aaa 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "@types/lodash": "^4.14.123",
     "@types/lolex": "^3.1.1",
     "@types/mocha": "^5.2.6",
-    "@types/sinon": "^7.0.11",
+    "@types/sinon": "^9.0.0",
     "@types/sinon-chai": "^3.2.2",
     "chai": "^4.2.0",
     "concurrently": "^4.1.0",