diff --git a/package.json b/package.json
index 190330e..9f9249c 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "@vuepress/plugin-back-to-top": "^2.0.0-beta.25",
     "@vuepress/plugin-debug": "^2.0.0-beta.25",
     "@vuepress/plugin-search": "^2.0.0-beta.25",
-    "postcss-loader": "^7.2.3",
+    "postcss-loader": "^7.3.0",
     "prettier": "^2.8.0",
     "sass": "^1.51.0",
     "sass-loader": "^13.2.0",
diff --git a/yarn.lock b/yarn.lock
index b99266b..bcf2e14 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1464,11 +1464,6 @@ cose-base@^2.2.0:
   dependencies:
     layout-base "^2.0.0"
 
-cosmiconfig-typescript-loader@^4.3.0:
-  version "4.3.0"
-  resolved "https://registry.yarnpkg.com/cosmiconfig-typescript-loader/-/cosmiconfig-typescript-loader-4.3.0.tgz#c4259ce474c9df0f32274ed162c0447c951ef073"
-  integrity sha512-NTxV1MFfZDLPiBMjxbHRwSh5LaLcPMwNdCutmnHJCKoVnlvldPWlllonKwrsRJ5pYZBIBGRWWU2tfvzxgeSW5Q==
-
 cosmiconfig@^7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/cosmiconfig/-/cosmiconfig-7.0.0.tgz#ef9b44d773959cae63ddecd122de23853b60f8d3"
@@ -3131,6 +3126,11 @@ jest-worker@^27.0.2:
     merge-stream "^2.0.0"
     supports-color "^8.0.0"
 
+jiti@^1.18.2:
+  version "1.18.2"
+  resolved "https://registry.yarnpkg.com/jiti/-/jiti-1.18.2.tgz#80c3ef3d486ebf2450d9335122b32d121f2a83cd"
+  integrity sha512-QAdOptna2NYiSSpv0O/BwoHBSmz4YhpzJHyi+fnMRTXFjp7B8i/YG5Z8IfusxB1ufjcD2Sre1F3R+nX3fvy7gg==
+
 joycon@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/joycon/-/joycon-3.0.1.tgz#9074c9b08ccf37a6726ff74a18485f85efcaddaf"
@@ -3823,13 +3823,13 @@ postcss-loader@^6.1.1:
     klona "^2.0.4"
     semver "^7.3.5"
 
-postcss-loader@^7.2.3:
-  version "7.2.3"
-  resolved "https://registry.yarnpkg.com/postcss-loader/-/postcss-loader-7.2.3.tgz#c2d491a769102e0aac228d53fb1ad376cc158bb2"
-  integrity sha512-H/PIjgbn2q7zFnmUMPvEupIFnOAg+fYWC/4F6DugK8uPITVYyEflnSjLFV0u20B3Qi88PzPiAlzn8hBSu3f8oA==
+postcss-loader@^7.3.0:
+  version "7.3.0"
+  resolved "https://registry.yarnpkg.com/postcss-loader/-/postcss-loader-7.3.0.tgz#05991c1e490d8ff86ef18358d87db3b5b2dcb5f5"
+  integrity sha512-qLAFjvR2BFNz1H930P7mj1iuWJFjGey/nVhimfOAAQ1ZyPpcClAxP8+A55Sl8mBvM+K2a9Pjgdj10KpANWrNfw==
   dependencies:
     cosmiconfig "^8.1.3"
-    cosmiconfig-typescript-loader "^4.3.0"
+    jiti "^1.18.2"
     klona "^2.0.6"
     semver "^7.3.8"