diff --git a/apps/OpenSign/package-lock.json b/apps/OpenSign/package-lock.json
index 63a43ea2b..bc656abee 100644
--- a/apps/OpenSign/package-lock.json
+++ b/apps/OpenSign/package-lock.json
@@ -80,7 +80,7 @@
         "eslint-plugin-react": "^7.34.3",
         "lint-staged": "^15.2.10",
         "mini-css-extract-plugin": "^2.9.1",
-        "postcss": "^8.4.45",
+        "postcss": "^8.4.47",
         "prettier": "^3.3.3",
         "pretty-quick": "^4.0.0",
         "tailwindcss": "^3.4.10",
@@ -18052,9 +18052,9 @@
       "integrity": "sha512-7EAHlyLHI56VEIdK57uwHdHKIaAGbnXPiw0yWbarQZOKaKpvUIgW0jWRVLiatnM+XXlSwsanIBH/hzGMJulMow=="
     },
     "node_modules/picocolors": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.0.1.tgz",
-      "integrity": "sha512-anP1Z8qwhkbmu7MFP5iTt+wQKXgwzf7zTyGlcdzabySa9vd0Xt392U0rVmz9poOaBj0uHJKyyo9/upk0HrEQew=="
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.1.0.tgz",
+      "integrity": "sha512-TQ92mBOW0l3LeMeyLV6mzy/kWr8lkd/hp3mTg7wYK7zJhuBStmGMBG0BdeDZS/dZx1IukaX6Bk11zcln25o1Aw=="
     },
     "node_modules/picomatch": {
       "version": "2.3.1",
@@ -18290,9 +18290,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.4.45",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.45.tgz",
-      "integrity": "sha512-7KTLTdzdZZYscUc65XmjFiB73vBhBfbPztCYdUNvlaso9PrzjzcmjqBPR0lNGkcVlcO4BjiO5rK/qNz+XAen1Q==",
+      "version": "8.4.47",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.47.tgz",
+      "integrity": "sha512-56rxCq7G/XfB4EkXq9Egn5GCqugWvDFjafDOThIdMBsI15iqPqR5r15TfSr1YPYeEI19YeaXMCbY6u88Y76GLQ==",
       "funding": [
         {
           "type": "opencollective",
@@ -18309,8 +18309,8 @@
       ],
       "dependencies": {
         "nanoid": "^3.3.7",
-        "picocolors": "^1.0.1",
-        "source-map-js": "^1.2.0"
+        "picocolors": "^1.1.0",
+        "source-map-js": "^1.2.1"
       },
       "engines": {
         "node": "^10 || ^12 || >=14"
@@ -22875,9 +22875,9 @@
       }
     },
     "node_modules/source-map-js": {
-      "version": "1.2.0",
-      "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.2.0.tgz",
-      "integrity": "sha512-itJW8lvSA0TXEphiRoawsCksnlf8SyvmFzIhltqAHluXd88pkCd+cXJVHTDwdCr0IzwptSm035IHQktUu1QUMg==",
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.2.1.tgz",
+      "integrity": "sha512-UXWMKhLOwVKb728IUtQPXxfYU+usdybtUrK/8uGE8CQMvrhOpwvzDBwj0QhSL7MQc7vIsISBG8VQ8+IDQxpfQA==",
       "engines": {
         "node": ">=0.10.0"
       }
diff --git a/apps/OpenSign/package.json b/apps/OpenSign/package.json
index 826591c69..36d4df1ab 100644
--- a/apps/OpenSign/package.json
+++ b/apps/OpenSign/package.json
@@ -112,7 +112,7 @@
     "eslint-plugin-react": "^7.34.3",
     "lint-staged": "^15.2.10",
     "mini-css-extract-plugin": "^2.9.1",
-    "postcss": "^8.4.45",
+    "postcss": "^8.4.47",
     "prettier": "^3.3.3",
     "pretty-quick": "^4.0.0",
     "tailwindcss": "^3.4.10",