diff --git a/nms/app/packages/magmalte/package.json b/nms/app/packages/magmalte/package.json
index 64aca9bb9049..84b1bb6dfede 100644
--- a/nms/app/packages/magmalte/package.json
+++ b/nms/app/packages/magmalte/package.json
@@ -86,7 +86,7 @@
     "jest-cli": "^26.4.2",
     "json-server": "^0.16.1",
     "nodemon": "^2.0.4",
-    "postcss-flexbugs-fixes": "^4.2.1",
+    "postcss-flexbugs-fixes": "^5.0.2",
     "postcss-loader": "^3.0.0",
     "puppeteer": "5.5.0",
     "react-hot-loader": "^4.8.0",
diff --git a/nms/app/yarn.lock b/nms/app/yarn.lock
index 3a19d5052ff7..23b22c506687 100644
--- a/nms/app/yarn.lock
+++ b/nms/app/yarn.lock
@@ -10875,12 +10875,10 @@ posix-character-classes@^0.1.0:
   resolved "https://registry.yarnpkg.com/posix-character-classes/-/posix-character-classes-0.1.1.tgz#01eac0fe3b5af71a2a6c02feabb8c1fef7e00eab"
   integrity sha1-AerA/jta9xoqbAL+q7jB/vfgDqs=
 
-postcss-flexbugs-fixes@^4.2.1:
-  version "4.2.1"
-  resolved "https://registry.yarnpkg.com/postcss-flexbugs-fixes/-/postcss-flexbugs-fixes-4.2.1.tgz#9218a65249f30897deab1033aced8578562a6690"
-  integrity sha512-9SiofaZ9CWpQWxOwRh1b/r85KD5y7GgvsNt1056k6OYLvWUun0czCvogfJgylC22uJTwW1KzY3Gz65NZRlvoiQ==
-  dependencies:
-    postcss "^7.0.26"
+postcss-flexbugs-fixes@^5.0.2:
+  version "5.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-flexbugs-fixes/-/postcss-flexbugs-fixes-5.0.2.tgz#2028e145313074fc9abe276cb7ca14e5401eb49d"
+  integrity sha512-18f9voByak7bTktR2QgDveglpn9DTbBWPUzSOe9g0N4WR/2eSt6Vrcbf0hmspvMI6YWGywz6B9f7jzpFNJJgnQ==
 
 postcss-load-config@^2.0.0:
   version "2.1.0"
@@ -10945,7 +10943,7 @@ postcss@^6.0.1, postcss@^6.0.17, postcss@^6.0.23:
     source-map "^0.6.1"
     supports-color "^5.4.0"
 
-postcss@^7.0.0, postcss@^7.0.26:
+postcss@^7.0.0:
   version "7.0.32"
   resolved "https://registry.yarnpkg.com/postcss/-/postcss-7.0.32.tgz#4310d6ee347053da3433db2be492883d62cec59d"
   integrity sha512-03eXong5NLnNCD05xscnGKGDZ98CyzoqPSMjOe6SuoQY7Z2hIj0Ld1g/O/UQRuOle2aRtiIRDg9tDcTGAkLfKw==