diff --git a/server-side-rendering/website1/package.json b/server-side-rendering/website1/package.json
index f2a6ade6e42..f9be80e5fea 100644
--- a/server-side-rendering/website1/package.json
+++ b/server-side-rendering/website1/package.json
@@ -54,7 +54,7 @@
     "@babel/plugin-syntax-import-meta": "7.8.3",
     "@babel/preset-env": "7.9.6",
     "@babel/preset-react": "7.9.4",
-    "autoprefixer": "9.5.1",
+    "autoprefixer": "9.7.6",
     "babel-eslint": "10.1.0",
     "babel-loader": "8.1.0",
     "chalk": "2.4.2",
diff --git a/server-side-rendering/website2/package.json b/server-side-rendering/website2/package.json
index e56c19b20c0..32965344909 100644
--- a/server-side-rendering/website2/package.json
+++ b/server-side-rendering/website2/package.json
@@ -55,7 +55,7 @@
     "@babel/plugin-syntax-import-meta": "7.8.3",
     "@babel/preset-env": "7.9.6",
     "@babel/preset-react": "7.9.4",
-    "autoprefixer": "9.5.1",
+    "autoprefixer": "9.7.6",
     "babel-eslint": "10.1.0",
     "babel-loader": "8.1.0",
     "chalk": "2.4.2",
diff --git a/yarn.lock b/yarn.lock
index e84f686b892..555a26fa567 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2827,17 +2827,18 @@ atob@^2.1.2:
   resolved "https://registry.yarnpkg.com/atob/-/atob-2.1.2.tgz#6d9517eb9e030d2436666651e86bd9f6f13533c9"
   integrity sha512-Wm6ukoaOGJi/73p/cl2GvLjTI5JM1k/O14isD73YML8StrH/7/lRFgmg8nICZgD3bZZvjwCGxtMOD3wWNAu8cg==
 
-autoprefixer@9.5.1:
-  version "9.5.1"
-  resolved "https://registry.yarnpkg.com/autoprefixer/-/autoprefixer-9.5.1.tgz#243b1267b67e7e947f28919d786b50d3bb0fb357"
-  integrity sha512-KJSzkStUl3wP0D5sdMlP82Q52JLy5+atf2MHAre48+ckWkXgixmfHyWmA77wFDy6jTHU6mIgXv6hAQ2mf1PjJQ==
+autoprefixer@9.7.6:
+  version "9.7.6"
+  resolved "https://registry.yarnpkg.com/autoprefixer/-/autoprefixer-9.7.6.tgz#63ac5bbc0ce7934e6997207d5bb00d68fa8293a4"
+  integrity sha512-F7cYpbN7uVVhACZTeeIeealwdGM6wMtfWARVLTy5xmKtgVdBNJvbDRoCK3YO1orcs7gv/KwYlb3iXwu9Ug9BkQ==
   dependencies:
-    browserslist "^4.5.4"
-    caniuse-lite "^1.0.30000957"
+    browserslist "^4.11.1"
+    caniuse-lite "^1.0.30001039"
+    chalk "^2.4.2"
     normalize-range "^0.1.2"
     num2fraction "^1.2.2"
-    postcss "^7.0.14"
-    postcss-value-parser "^3.3.1"
+    postcss "^7.0.27"
+    postcss-value-parser "^4.0.3"
 
 aws-sign2@~0.7.0:
   version "0.7.0"
@@ -3093,7 +3094,7 @@ browser-resolve@^1.11.3:
   dependencies:
     resolve "1.1.7"
 
-browserslist@^4.0.0, browserslist@^4.11.1, browserslist@^4.5.4, browserslist@^4.8.5:
+browserslist@^4.0.0, browserslist@^4.11.1, browserslist@^4.8.5:
   version "4.12.0"
   resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.12.0.tgz#06c6d5715a1ede6c51fc39ff67fd647f740b656d"
   integrity sha512-UH2GkcEDSI0k/lRkuDSzFl9ZZ87skSy9w2XAn1MsZnL+4c4rqbBd3e82UWHbYDpztABrPBhZsTEeuxVfHppqDg==
@@ -3304,7 +3305,7 @@ caniuse-api@^3.0.0:
     lodash.memoize "^4.1.2"
     lodash.uniq "^4.5.0"
 
-caniuse-lite@^1.0.0, caniuse-lite@^1.0.30000957, caniuse-lite@^1.0.30001043:
+caniuse-lite@^1.0.0, caniuse-lite@^1.0.30001039, caniuse-lite@^1.0.30001043:
   version "1.0.30001048"
   resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001048.tgz#4bb4f1bc2eb304e5e1154da80b93dee3f1cf447e"
   integrity sha512-g1iSHKVxornw0K8LG9LLdf+Fxnv7T1Z+mMsf0/YYLclQX4Cd522Ap0Lrw6NFqHgezit78dtyWxzlV2Xfc7vgRg==