diff --git a/yarn.lock b/yarn.lock
index 54a5741..5f91153 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8287,7 +8287,7 @@ react-error-overlay@^6.0.5:
   resolved "https://registry.npmjs.org/react-error-overlay/-/react-error-overlay-6.0.5.tgz#55d59c2a3810e8b41922e0b4e5f85dcf239bd533"
   integrity sha512-+DMR2k5c6BqMDSMF8hLH0vYKtKTeikiFW+fj0LClN+XZg4N9b8QUAdHC62CGWNLTi/gnuuemNcNcTFrCvK1f+A==
 
-react-is@^16.8.1, react-is@^16.8.4, react-is@^16.8.6:
+react-is@^16.8.1, react-is@^16.8.4:
   version "16.12.0"
   resolved "https://registry.npmjs.org/react-is/-/react-is-16.12.0.tgz#2cc0fe0fba742d97fd527c42a13bec4eeb06241c"
   integrity sha512-rPCkf/mWBtKc97aLL9/txD8DZdemK0vkA3JMLShjlJB3Pj3s+lpf1KaBzMfQrAmhMQB0n1cU/SUGgKKBCe837Q==
@@ -8352,16 +8352,6 @@ react-scripts@3.3.1:
   optionalDependencies:
     fsevents "2.1.2"
 
-react-test-renderer@^16.12.0:
-  version "16.12.0"
-  resolved "https://registry.npmjs.org/react-test-renderer/-/react-test-renderer-16.12.0.tgz#11417ffda579306d4e841a794d32140f3da1b43f"
-  integrity sha512-Vj/teSqt2oayaWxkbhQ6gKis+t5JrknXfPVo+aIJ8QwYAqMPH77uptOdrlphyxl8eQI/rtkOYg86i/UWkpFu0w==
-  dependencies:
-    object-assign "^4.1.1"
-    prop-types "^15.6.2"
-    react-is "^16.8.6"
-    scheduler "^0.18.0"
-
 react@^16.12.0:
   version "16.12.0"
   resolved "https://registry.npmjs.org/react/-/react-16.12.0.tgz#0c0a9c6a142429e3614834d5a778e18aa78a0b83"
@@ -10199,9 +10189,9 @@ websocket-driver@>=0.5.1:
     websocket-extensions ">=0.1.1"
 
 websocket-extensions@>=0.1.1:
-  version "0.1.3"
-  resolved "https://registry.npmjs.org/websocket-extensions/-/websocket-extensions-0.1.3.tgz#5d2ff22977003ec687a4b87073dfbbac146ccf29"
-  integrity sha512-nqHUnMXmBzT0w570r2JpJxfiSD1IzoI+HGVdd3aZ0yNi3ngvQ4jv1dtHt5VGxfI2yj5yqImPhOK4vmIh2xMbGg==
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/websocket-extensions/-/websocket-extensions-0.1.4.tgz#7f8473bc839dfd87608adb95d7eb075211578a42"
+  integrity sha512-OqedPIGOfsDlo31UNwYbCFMSaO9m9G/0faIHj5/dZFDMFqPTcx6UwqyOy3COEaEOg/9VsGIpdqn62W5KhoKSpg==
 
 whatwg-encoding@^1.0.1, whatwg-encoding@^1.0.3, whatwg-encoding@^1.0.5:
   version "1.0.5"