diff --git a/yarn.lock b/yarn.lock
index 464a9ddf64..3957a35816 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3656,10 +3656,10 @@ log4js@^4.0.0:
     rfdc "^1.1.2"
     streamroller "^1.0.1"
 
-lolex@^3.1.0:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/lolex/-/lolex-3.1.0.tgz#1a7feb2fefd75b3e3a7f79f0e110d9476e294434"
-  integrity sha512-zFo5MgCJ0rZ7gQg69S4pqBsLURbFw11X68C18OcJjJQbqaXm2NoTrGl1IMM3TIz0/BnN1tIs2tzmmqvCsOMMjw==
+lolex@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/lolex/-/lolex-4.0.1.tgz#4a99c2251579d693c6a083446dae0e5c3844d3fa"
+  integrity sha512-UHuOBZ5jjsKuzbB/gRNNW8Vg8f00Emgskdq2kvZxgBJCS0aqquAuXai/SkWORlKeZEiNQWZjFZOqIUcH9LqKCw==
 
 loud-rejection@^1.0.0, loud-rejection@^1.2.0:
   version "1.6.0"