diff --git a/package.json b/package.json
index 71ed84d0c..5c388230a 100644
--- a/package.json
+++ b/package.json
@@ -45,7 +45,7 @@
     "connected-react-router": "6.3.1",
     "create-react-class": "15.6.3",
     "css-loader": "2.1.0",
-    "del": "3.0.0",
+    "del": "4.0.0",
     "element-class": "0.2.2",
     "esformatter": "0.10.0",
     "eslint": "5.15.0",
diff --git a/yarn.lock b/yarn.lock
index 78098b21f..6b9f27f20 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2602,17 +2602,17 @@ define-property@^2.0.2:
     is-descriptor "^1.0.2"
     isobject "^3.0.1"
 
-del@3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/del/-/del-3.0.0.tgz#53ecf699ffcbcb39637691ab13baf160819766e5"
-  integrity sha1-U+z2mf/LyzljdpGrE7rxYIGXZuU=
+del@4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/del/-/del-4.0.0.tgz#4fa27e92c366cb45b9bdaa56a9b8703dced17437"
+  integrity sha512-/BnSJ+SuZyLu7xMn48kZY0nMXDi+5KNmR4g8n21Wivsl8+B9njV6/5kcTNE9juSprp0zRWBU28JuHUq0FqK1Nw==
   dependencies:
     globby "^6.1.0"
-    is-path-cwd "^1.0.0"
-    is-path-in-cwd "^1.0.0"
-    p-map "^1.1.1"
-    pify "^3.0.0"
-    rimraf "^2.2.8"
+    is-path-cwd "^2.0.0"
+    is-path-in-cwd "^2.0.0"
+    p-map "^2.0.0"
+    pify "^4.0.1"
+    rimraf "^2.6.2"
 
 delegate@^3.1.2:
   version "3.2.0"
@@ -4617,15 +4617,15 @@ is-obj@^1.0.0:
   resolved "https://registry.yarnpkg.com/is-obj/-/is-obj-1.0.1.tgz#3e4729ac1f5fde025cd7d83a896dab9f4f67db0f"
   integrity sha1-PkcprB9f3gJc19g6iW2rn09n2w8=
 
-is-path-cwd@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/is-path-cwd/-/is-path-cwd-1.0.0.tgz#d225ec23132e89edd38fda767472e62e65f1106d"
-  integrity sha1-0iXsIxMuie3Tj9p2dHLmLmXxEG0=
+is-path-cwd@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/is-path-cwd/-/is-path-cwd-2.0.0.tgz#d4777a8e227a00096a31f030db3770f84b116c02"
+  integrity sha512-m5dHHzpOXEiv18JEORttBO64UgTEypx99vCxQLjbBvGhOJxnTNglYoFXxwo6AbsQb79sqqycQEHv2hWkHZAijA==
 
-is-path-in-cwd@^1.0.0:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/is-path-in-cwd/-/is-path-in-cwd-1.0.1.tgz#5ac48b345ef675339bd6c7a48a912110b241cf52"
-  integrity sha512-FjV1RTW48E7CWM7eE/J2NJvAEEVektecDBVBE5Hh3nM1Jd0kvhHtX68Pr3xsDf857xt3Y4AkwVULK1Vku62aaQ==
+is-path-in-cwd@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/is-path-in-cwd/-/is-path-in-cwd-2.0.0.tgz#68e452a6eec260500cec21e029c0a44cc0dcd2ea"
+  integrity sha512-6Vz5Gc9s/sDA3JBVu0FzWufm8xaBsqy1zn8Q6gmvGP6nSDMw78aS4poBNeatWjaRpTpxxLn1WOndAiOlk+qY8A==
   dependencies:
     is-path-inside "^1.0.0"
 
@@ -6069,10 +6069,10 @@ p-locate@^3.0.0:
   dependencies:
     p-limit "^2.0.0"
 
-p-map@^1.1.1:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/p-map/-/p-map-1.2.0.tgz#e4e94f311eabbc8633a1e79908165fca26241b6b"
-  integrity sha512-r6zKACMNhjPJMTl8KcFH4li//gkrXWfbD6feV8l6doRHlzljFWGJ2AP6iKaCJXyZmAUMOPtvbW7EXkbWO/pLEA==
+p-map@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/p-map/-/p-map-2.0.0.tgz#be18c5a5adeb8e156460651421aceca56c213a50"
+  integrity sha512-GO107XdrSUmtHxVoi60qc9tUl/KkNKm+X2CF4P9amalpGxv5YqVPJNfSb0wcA+syCopkZvYYIzW8OVTQW59x/w==
 
 p-try@^1.0.0:
   version "1.0.0"
@@ -7455,7 +7455,7 @@ rgb@~0.1.0:
   resolved "https://registry.yarnpkg.com/rgb/-/rgb-0.1.0.tgz#be27b291e8feffeac1bd99729721bfa40fc037b5"
   integrity sha1-vieykej+/+rBvZlylyG/pA/AN7U=
 
-rimraf@2, rimraf@2.6.3, rimraf@^2.2.8, rimraf@^2.5.4, rimraf@^2.6.1, rimraf@^2.6.2:
+rimraf@2, rimraf@2.6.3, rimraf@^2.5.4, rimraf@^2.6.1, rimraf@^2.6.2:
   version "2.6.3"
   resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.3.tgz#b2d104fe0d8fb27cf9e0a1cda8262dd3833c6cab"
   integrity sha512-mwqeW5XsA2qAejG46gYdENaxXjx9onRNCfn7L0duuP4hCuTIi/QO7PDK07KJfp1d+izWPrzEJDcSqBa0OZQriA==