diff --git a/package.json b/package.json
index 0f6ba027f..6c7b504c0 100755
--- a/package.json
+++ b/package.json
@@ -71,7 +71,8 @@
     "ws": "^7.4.6",
     "css-what": "^5.0.1",
     "trim-newlines": "^3.0.1",
-    "clean-css": "^4.1.11"
+    "clean-css": "^4.1.11",
+    "mem": "^4.0.0"
   },
   "config": {
     "commitizen": {
diff --git a/yarn.lock b/yarn.lock
index 2c78436b9..16cc88f6a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -14719,14 +14719,7 @@ media-typer@0.3.0:
   resolved "https://registry.yarnpkg.com/media-typer/-/media-typer-0.3.0.tgz#8710d7af0aa626f8fffa1ce00168545263255748"
   integrity sha1-hxDXrwqmJvj/+hzgAWhUUmMlV0g=
 
-mem@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/mem/-/mem-1.1.0.tgz#5edd52b485ca1d900fe64895505399a0dfa45f76"
-  integrity sha1-Xt1StIXKHZAP5kiVUFOZoN+kX3Y=
-  dependencies:
-    mimic-fn "^1.0.0"
-
-mem@^4.0.0, mem@^4.3.0:
+mem@^1.1.0, mem@^4.0.0, mem@^4.3.0:
   version "4.3.0"
   resolved "https://registry.yarnpkg.com/mem/-/mem-4.3.0.tgz#461af497bc4ae09608cdb2e60eefb69bff744178"
   integrity sha512-qX2bG48pTqYRVmDB37rn/6PT7LcR8T7oAX3bf99u1Tt1nzxYfxkgqDwUwolPlXweM0XzBOBFzSx4kfp7KP1s/w==