diff --git a/package.json b/package.json
index 2c6496c9..912583c1 100644
--- a/package.json
+++ b/package.json
@@ -107,6 +107,6 @@
     "undate": "0.3.0",
     "webpack": "4.19.1",
     "webpack-cli": "3.1.1",
-    "webpack-dev-server": "3.1.8"
+    "webpack-dev-server": "3.1.9"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 2045eb26..1c0ae918 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4562,7 +4562,7 @@ loose-envify@^1.0.0:
   dependencies:
     js-tokens "^3.0.0 || ^4.0.0"
 
-loud-rejection@^1.0.0, loud-rejection@^1.6.0:
+loud-rejection@^1.0.0:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/loud-rejection/-/loud-rejection-1.6.0.tgz#5b46f80147edee578870f086d04821cf998e551f"
   dependencies:
@@ -7658,10 +7658,6 @@ urix@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/urix/-/urix-0.1.0.tgz#da937f7a62e21fec1fd18d49b35c2935067a6c72"
 
-url-join@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/url-join/-/url-join-4.0.0.tgz#4d3340e807d3773bda9991f8305acdcc2a665d2a"
-
 url-parse-lax@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/url-parse-lax/-/url-parse-lax-3.0.0.tgz#16b5cafc07dbe3676c1b1999177823d6503acb0c"
@@ -7829,21 +7825,18 @@ webpack-cli@3.1.1:
     v8-compile-cache "^2.0.2"
     yargs "^12.0.2"
 
-webpack-dev-middleware@3.2.0:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-3.2.0.tgz#a20ceef194873710052da678f3c6ee0aeed92552"
+webpack-dev-middleware@3.4.0:
+  version "3.4.0"
+  resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-3.4.0.tgz#1132fecc9026fd90f0ecedac5cbff75d1fb45890"
   dependencies:
-    loud-rejection "^1.6.0"
     memory-fs "~0.4.1"
     mime "^2.3.1"
-    path-is-absolute "^1.0.0"
     range-parser "^1.0.3"
-    url-join "^4.0.0"
     webpack-log "^2.0.0"
 
-webpack-dev-server@3.1.8:
-  version "3.1.8"
-  resolved "https://registry.yarnpkg.com/webpack-dev-server/-/webpack-dev-server-3.1.8.tgz#eb7a95945d1108170f902604fb3b939533d9daeb"
+webpack-dev-server@3.1.9:
+  version "3.1.9"
+  resolved "https://registry.yarnpkg.com/webpack-dev-server/-/webpack-dev-server-3.1.9.tgz#8b32167624d2faff40dcedc2cbce17ed1f34d3e0"
   dependencies:
     ansi-html "0.0.7"
     bonjour "^3.5.0"
@@ -7870,7 +7863,7 @@ webpack-dev-server@3.1.8:
     spdy "^3.4.1"
     strip-ansi "^3.0.0"
     supports-color "^5.1.0"
-    webpack-dev-middleware "3.2.0"
+    webpack-dev-middleware "3.4.0"
     webpack-log "^2.0.0"
     yargs "12.0.2"