diff --git a/apps/nextjs-testing/js-nosrc-app/package.json b/apps/nextjs-testing/js-nosrc-app/package.json
index 5f29995fa..dc1be8f42 100644
--- a/apps/nextjs-testing/js-nosrc-app/package.json
+++ b/apps/nextjs-testing/js-nosrc-app/package.json
@@ -18,6 +18,6 @@
     "eslint-config-next": "16.2.9"
   },
   "overrides": {
-    "postcss": ">=8.5.10"
+    "postcss": ">=8.5.15"
   }
 }
diff --git a/apps/nextjs-testing/js-nosrc-pages/package.json b/apps/nextjs-testing/js-nosrc-pages/package.json
index 2ccdbb2ff..627b0ff11 100644
--- a/apps/nextjs-testing/js-nosrc-pages/package.json
+++ b/apps/nextjs-testing/js-nosrc-pages/package.json
@@ -18,6 +18,6 @@
     "eslint-config-next": "16.2.9"
   },
   "overrides": {
-    "postcss": ">=8.5.10"
+    "postcss": ">=8.5.15"
   }
 }
diff --git a/apps/nextjs-testing/js-src-app/package.json b/apps/nextjs-testing/js-src-app/package.json
index 2c5a3d59f..be469ecbd 100644
--- a/apps/nextjs-testing/js-src-app/package.json
+++ b/apps/nextjs-testing/js-src-app/package.json
@@ -18,6 +18,6 @@
     "eslint-config-next": "16.2.9"
   },
   "overrides": {
-    "postcss": ">=8.5.10"
+    "postcss": ">=8.5.15"
   }
 }
diff --git a/apps/nextjs-testing/js-src-pages/package.json b/apps/nextjs-testing/js-src-pages/package.json
index 49827b45e..48442ae97 100644
--- a/apps/nextjs-testing/js-src-pages/package.json
+++ b/apps/nextjs-testing/js-src-pages/package.json
@@ -18,6 +18,6 @@
     "eslint-config-next": "16.2.9"
   },
   "overrides": {
-    "postcss": ">=8.5.10"
+    "postcss": ">=8.5.15"
   }
 }
diff --git a/apps/nextjs-testing/ts-nosrc-app/package.json b/apps/nextjs-testing/ts-nosrc-app/package.json
index 3207af91c..8e23a189f 100644
--- a/apps/nextjs-testing/ts-nosrc-app/package.json
+++ b/apps/nextjs-testing/ts-nosrc-app/package.json
@@ -22,6 +22,6 @@
     "typescript": "^5.9.3"
   },
   "overrides": {
-    "postcss": ">=8.5.10"
+    "postcss": ">=8.5.15"
   }
 }
diff --git a/apps/nextjs-testing/ts-nosrc-pages/package.json b/apps/nextjs-testing/ts-nosrc-pages/package.json
index acf49590a..5a9398b62 100644
--- a/apps/nextjs-testing/ts-nosrc-pages/package.json
+++ b/apps/nextjs-testing/ts-nosrc-pages/package.json
@@ -22,6 +22,6 @@
     "typescript": "^5.9.3"
   },
   "overrides": {
-    "postcss": ">=8.5.10"
+    "postcss": ">=8.5.15"
   }
 }
diff --git a/apps/nextjs-testing/ts-src-app/package.json b/apps/nextjs-testing/ts-src-app/package.json
index 1c38d4151..82c9fa75b 100644
--- a/apps/nextjs-testing/ts-src-app/package.json
+++ b/apps/nextjs-testing/ts-src-app/package.json
@@ -22,6 +22,6 @@
     "typescript": "^5.9.3"
   },
   "overrides": {
-    "postcss": ">=8.5.10"
+    "postcss": ">=8.5.15"
   }
 }
diff --git a/apps/nextjs-testing/ts-src-pages/package.json b/apps/nextjs-testing/ts-src-pages/package.json
index 436e1406b..47860251f 100644
--- a/apps/nextjs-testing/ts-src-pages/package.json
+++ b/apps/nextjs-testing/ts-src-pages/package.json
@@ -22,6 +22,6 @@
     "typescript": "^5.9.3"
   },
   "overrides": {
-    "postcss": ">=8.5.10"
+    "postcss": ">=8.5.15"
   }
 }