diff --git a/package.json b/package.json
index a7ab30b..5827cd9 100644
--- a/package.json
+++ b/package.json
@@ -105,7 +105,7 @@
     "gh-pages": "2.0.1",
     "lost": "8.3.1",
     "postcss-pxtorem": "4.0.1",
-    "autoprefixer": "9.4.8",
+    "autoprefixer": "9.4.9",
     "browserslist": "4.4.2"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 558c72c..7cf45af 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1933,12 +1933,12 @@ atob@^2.1.1:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/atob/-/atob-2.1.2.tgz#6d9517eb9e030d2436666651e86bd9f6f13533c9"
 
-autoprefixer@9.4.8:
-  version "9.4.8"
-  resolved "https://registry.yarnpkg.com/autoprefixer/-/autoprefixer-9.4.8.tgz#575dcdfd984228c7bccbc08c5fe53f0ea6915593"
+autoprefixer@9.4.9:
+  version "9.4.9"
+  resolved "https://registry.yarnpkg.com/autoprefixer/-/autoprefixer-9.4.9.tgz#0d3eb86bc1d1228551abcf55220d6fd246b6cb31"
   dependencies:
-    browserslist "^4.4.1"
-    caniuse-lite "^1.0.30000938"
+    browserslist "^4.4.2"
+    caniuse-lite "^1.0.30000939"
     normalize-range "^0.1.2"
     num2fraction "^1.2.2"
     postcss "^7.0.14"
@@ -2622,7 +2622,7 @@ browserslist@3.2.8, browserslist@^3.2.8:
     caniuse-lite "^1.0.30000844"
     electron-to-chromium "^1.3.47"
 
-browserslist@4.4.2:
+browserslist@4.4.2, browserslist@^4.4.2:
   version "4.4.2"
   resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.4.2.tgz#6ea8a74d6464bb0bd549105f659b41197d8f0ba2"
   dependencies:
@@ -2646,7 +2646,7 @@ browserslist@^4.3.3:
     electron-to-chromium "^1.3.81"
     node-releases "^1.0.0-alpha.15"
 
-browserslist@^4.3.4, browserslist@^4.4.1:
+browserslist@^4.3.4:
   version "4.4.1"
   resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.4.1.tgz#42e828954b6b29a7a53e352277be429478a69062"
   dependencies:
@@ -2888,10 +2888,6 @@ caniuse-lite@^1.0.30000929:
   version "1.0.30000929"
   resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30000929.tgz#7b391b781a9c3097ecc39ea053301aea8ea16317"
 
-caniuse-lite@^1.0.30000938:
-  version "1.0.30000938"
-  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30000938.tgz#b64bf1427438df40183fce910fe24e34feda7a3f"
-
 caniuse-lite@^1.0.30000939:
   version "1.0.30000939"
   resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30000939.tgz#b9ab7ac9e861bf78840b80c5dfbc471a5cd7e679"