diff --git a/package.json b/package.json
index 083e452..0d5de37 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "eslint-config-prettier": "^3.6.0",
     "eslint-plugin-import": "^2.20.1",
     "eslint-plugin-prettier": "^2.7.0",
-    "lolex": "^2.7.5",
+    "lolex": "^6.0.0",
     "mocha": "^5.2.0",
     "prettier": "^1.15.3"
   }
diff --git a/yarn.lock b/yarn.lock
index 39a8c7b..a4cd06c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -59,6 +59,12 @@
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/@protobufjs/utf8/-/utf8-1.1.0.tgz#a777360b5b39a1a2e5106f8e858f2fd2d060c570"
 
+"@sinonjs/commons@^1.7.0":
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/@sinonjs/commons/-/commons-1.7.0.tgz#f90ffc52a2e519f018b13b6c4da03cbff36ebed6"
+  dependencies:
+    type-detect "4.0.8"
+
 "@types/long@^4.0.0":
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/@types/long/-/long-4.0.0.tgz#719551d2352d301ac8b81db732acb6bdc28dbdef"
@@ -1000,9 +1006,11 @@ lodash@^4.17.11, lodash@^4.17.15:
   version "4.17.15"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
 
-lolex@^2.7.5:
-  version "2.7.5"
-  resolved "https://registry.yarnpkg.com/lolex/-/lolex-2.7.5.tgz#113001d56bfc7e02d56e36291cc5c413d1aa0733"
+lolex@^6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/lolex/-/lolex-6.0.0.tgz#790de1911da46e67e4b60c94859d19e2db0bb7e9"
+  dependencies:
+    "@sinonjs/commons" "^1.7.0"
 
 long@^4.0.0:
   version "4.0.0"
@@ -1636,7 +1644,7 @@ type-check@~0.3.2:
   dependencies:
     prelude-ls "~1.1.2"
 
-type-detect@^4.0.0, type-detect@^4.0.5:
+type-detect@4.0.8, type-detect@^4.0.0, type-detect@^4.0.5:
   version "4.0.8"
   resolved "https://registry.yarnpkg.com/type-detect/-/type-detect-4.0.8.tgz#7646fb5f18871cfbb7749e69bd39a6388eb7450c"