diff --git a/package.json b/package.json
index 738b087..ac68ae8 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
     "@types/styled-components": "5.1.0",
     "@types/text-encoding": "0.0.35",
     "@types/webpack": "4.41.10",
-    "@types/webpack-dev-server": "3.10.1",
+    "@types/webpack-dev-server": "3.11.6",
     "@typescript-eslint/eslint-plugin": "2.0.0",
     "@typescript-eslint/parser": "2.0.0",
     "@typescript-eslint/typescript-estree": "2.0.0",
diff --git a/yarn.lock b/yarn.lock
index e256db8..da1a4cf 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1190,19 +1190,10 @@
     "@types/tapable" "*"
     "@types/webpack" "*"
 
-"@types/http-proxy-middleware@*":
-  version "0.19.3"
-  resolved "https://registry.yarnpkg.com/@types/http-proxy-middleware/-/http-proxy-middleware-0.19.3.tgz#b2eb96fbc0f9ac7250b5d9c4c53aade049497d03"
-  integrity sha512-lnBTx6HCOUeIJMLbI/LaL5EmdKLhczJY5oeXZpX/cXE4rRqb3RmV7VcMpiEfYkmTjipv3h7IAyIINe4plEv7cA==
-  dependencies:
-    "@types/connect" "*"
-    "@types/http-proxy" "*"
-    "@types/node" "*"
-
-"@types/http-proxy@*":
-  version "1.17.4"
-  resolved "https://registry.yarnpkg.com/@types/http-proxy/-/http-proxy-1.17.4.tgz#e7c92e3dbe3e13aa799440ff42e6d3a17a9d045b"
-  integrity sha512-IrSHl2u6AWXduUaDLqYpt45tLVCtYv7o4Z0s1KghBCDgIIS9oW5K1H8mZG/A2CfeLdEa7rTd1ACOiHBc1EMT2Q==
+"@types/http-proxy@^1.17.5":
+  version "1.17.17"
+  resolved "https://registry.yarnpkg.com/@types/http-proxy/-/http-proxy-1.17.17.tgz#d9e2c4571fe3507343cb210cd41790375e59a533"
+  integrity sha512-ED6LB+Z1AVylNTu7hdzuBqOgMnvG/ld6wGCG8wFnAzKX5uyW2K3WD52v0gnLCTK/VLpXtKckgWuyScYK6cSPaw==
   dependencies:
     "@types/node" "*"
 
@@ -1321,6 +1312,11 @@
   resolved "https://registry.yarnpkg.com/@types/tapable/-/tapable-1.0.5.tgz#9adbc12950582aa65ead76bffdf39fe0c27a3c02"
   integrity sha512-/gG2M/Imw7cQFp8PGvz/SwocNrmKFjFsm5Pb8HdbHkZ1K8pmuPzOX4VeVoiEecFCVf4CsN1r3/BRvx+6sNqwtQ==
 
+"@types/tapable@^1":
+  version "1.0.12"
+  resolved "https://registry.yarnpkg.com/@types/tapable/-/tapable-1.0.12.tgz#bc2cab12e87978eee89fb21576b670350d6d86ab"
+  integrity sha512-bTHG8fcxEqv1M9+TD14P8ok8hjxoOCkfKc8XXLaaD05kI7ohpeI956jtDOD3XHKBQrlyPughUtzm1jtVhHpA5Q==
+
 "@types/text-encoding@0.0.35":
   version "0.0.35"
   resolved "https://registry.yarnpkg.com/@types/text-encoding/-/text-encoding-0.0.35.tgz#6f14474e0b232bc70c59677aadc65dcc5a99c3a9"
@@ -1333,16 +1329,16 @@
   dependencies:
     source-map "^0.6.1"
 
-"@types/webpack-dev-server@3.10.1":
-  version "3.10.1"
-  resolved "https://registry.yarnpkg.com/@types/webpack-dev-server/-/webpack-dev-server-3.10.1.tgz#93b7133cc9dab1ca1b76659f5ef8b763ad54c28a"
-  integrity sha512-2nwwQ/qHRghUirvG/gEDkOQDa+d881UTJM7EG9ok5KNaYCjYVvy7fdaO528Lcym9OQDn75SvruPYVVvMJxqO0g==
+"@types/webpack-dev-server@3.11.6":
+  version "3.11.6"
+  resolved "https://registry.yarnpkg.com/@types/webpack-dev-server/-/webpack-dev-server-3.11.6.tgz#d8888cfd2f0630203e13d3ed7833a4d11b8a34dc"
+  integrity sha512-XCph0RiiqFGetukCTC3KVnY1jwLcZ84illFRMbyFzCcWl90B/76ew0tSqF46oBhnLC4obNDG7dMO0JfTN0MgMQ==
   dependencies:
     "@types/connect-history-api-fallback" "*"
     "@types/express" "*"
-    "@types/http-proxy-middleware" "*"
     "@types/serve-static" "*"
-    "@types/webpack" "*"
+    "@types/webpack" "^4"
+    http-proxy-middleware "^1.0.0"
 
 "@types/webpack-sources@*":
   version "0.1.7"
@@ -1377,6 +1373,18 @@
     "@types/webpack-sources" "*"
     source-map "^0.6.0"
 
+"@types/webpack@^4":
+  version "4.41.40"
+  resolved "https://registry.yarnpkg.com/@types/webpack/-/webpack-4.41.40.tgz#41ea11cfafe08de24c3ef410c58976350667e2d1"
+  integrity sha512-u6kMFSBM9HcoTpUXnL6mt2HSzftqb3JgYV6oxIgL2dl6sX6aCa5k6SOkzv5DuZjBTPUE/dJltKtwwuqrkZHpfw==
+  dependencies:
+    "@types/node" "*"
+    "@types/tapable" "^1"
+    "@types/uglify-js" "*"
+    "@types/webpack-sources" "*"
+    anymatch "^3.0.0"
+    source-map "^0.6.0"
+
 "@types/yargs-parser@*":
   version "15.0.0"
   resolved "https://registry.yarnpkg.com/@types/yargs-parser/-/yargs-parser-15.0.0.tgz#cb3f9f741869e20cce330ffbeb9271590483882d"
@@ -1694,6 +1702,14 @@ anymatch@^2.0.0:
     micromatch "^3.1.4"
     normalize-path "^2.1.1"
 
+anymatch@^3.0.0:
+  version "3.1.3"
+  resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-3.1.3.tgz#790c58b19ba1720a84205b57c618d5ad8524973e"
+  integrity sha512-KMReFUr0B4t+D+OBkjR3KYqvocp2XaSzO55UcB6mgQMd3KbcE+mWTyvVV7D/zsdEbNnV6acZUutkiHQXvTr1Rw==
+  dependencies:
+    normalize-path "^3.0.0"
+    picomatch "^2.0.4"
+
 anymatch@^3.0.3:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-3.1.1.tgz#c55ecf02185e2469259399310c173ce31233b142"
@@ -3976,7 +3992,18 @@ http-proxy-middleware@0.19.1:
     lodash "^4.17.11"
     micromatch "^3.1.10"
 
-http-proxy@^1.17.0:
+http-proxy-middleware@^1.0.0:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/http-proxy-middleware/-/http-proxy-middleware-1.3.1.tgz#43700d6d9eecb7419bf086a128d0f7205d9eb665"
+  integrity sha512-13eVVDYS4z79w7f1+NPllJtOQFx/FdUW4btIvVRMaRlUY9VGstAbo5MOhLEuUgZFRHn3x50ufn25zkj/boZnEg==
+  dependencies:
+    "@types/http-proxy" "^1.17.5"
+    http-proxy "^1.18.1"
+    is-glob "^4.0.1"
+    is-plain-obj "^3.0.0"
+    micromatch "^4.0.2"
+
+http-proxy@^1.17.0, http-proxy@^1.18.1:
   version "1.18.1"
   resolved "https://registry.yarnpkg.com/http-proxy/-/http-proxy-1.18.1.tgz#401541f0534884bbf95260334e72f88ee3976549"
   integrity sha512-7mz/721AbnJwIVbnaSv1Cz3Am0ZLT/UBwkC92VlxhXv/k/BBQfM2fXElQNC27BVGr0uwUpplYPQM9LnaBMR5NQ==
@@ -4303,6 +4330,11 @@ is-path-inside@^2.1.0:
   dependencies:
     path-is-inside "^1.0.2"
 
+is-plain-obj@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/is-plain-obj/-/is-plain-obj-3.0.0.tgz#af6f2ea14ac5a646183a5bbdb5baabbc156ad9d7"
+  integrity sha512-gwsOE28k+23GP1B6vFl1oVh/WOzmawBrKwo5Ev6wMKzPkaXaCDIQKzLnvsA42DRlbVTWorkgTKIviAKCWkfUwA==
+
 is-plain-object@^2.0.3, is-plain-object@^2.0.4:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/is-plain-object/-/is-plain-object-2.0.4.tgz#2c163b3fafb1b606d9d17928f05c2a1c38e07677"