diff --git a/packages/nx/src/plugins/js/lock-file/pnpm-parser.spec.ts b/packages/nx/src/plugins/js/lock-file/pnpm-parser.spec.ts
index 0aade0d299bc06..fe6ea9ae5eb774 100644
--- a/packages/nx/src/plugins/js/lock-file/pnpm-parser.spec.ts
+++ b/packages/nx/src/plugins/js/lock-file/pnpm-parser.spec.ts
@@ -1827,4 +1827,160 @@ snapshots:
       ).not.toThrow();
     });
   });
+
+  describe('patched dependencies', () => {
+    beforeEach(() => {
+      const fileSys = {
+        'node_modules/.modules.yaml': `hoistedDependencies: {}`,
+        'node_modules/vitest/package.json': '{"version": "3.2.4"}',
+        'node_modules/lodash/package.json': '{"version": "4.17.21"}',
+      };
+      vol.fromJSON(fileSys, '/root');
+    });
+
+    it('should include patch hash in external node hash (v9)', () => {
+      const lockFile = `lockfileVersion: '9.0'
+
+settings:
+  autoInstallPeers: true
+  excludeLinksFromLockfile: false
+
+patchedDependencies:
+  vitest:
+    hash: dde3c7a634692aefe0877c763192102a73d3451e6d12dae61df88fd1e6e9368e
+    path: patches/vitest.patch
+
+importers:
+
+  .:
+    dependencies:
+      lodash:
+        specifier: ^4.17.21
+        version: 4.17.21
+      vitest:
+        specifier: 3.2.4
+        version: 3.2.4
+
+packages:
+
+  lodash@4.17.21:
+    resolution: {integrity: sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==}
+
+  vitest@3.2.4:
+    resolution: {integrity: sha512-LUCP5ev3GURDysTWiP47wRRUpLKMOfPh+yKTx3kVIEiu5KOMeqzpnYNsKyOoVrULivR8tLcks4+lga33Whn90A==}
+    engines: {node: ^18.0.0 || ^20.0.0 || >=22.0.0}
+    hasBin: true
+
+snapshots:
+
+  lodash@4.17.21: {}
+
+  vitest@3.2.4: {}`;
+
+      const lockFileHash = 'test-lockfile-hash';
+
+      const { nodes: externalNodes } = getPnpmLockfileNodes(
+        lockFile,
+        lockFileHash
+      );
+
+      // Lodash should have only the integrity hash
+      expect(externalNodes['npm:lodash']).toMatchObject({
+        type: 'npm',
+        name: 'npm:lodash',
+        data: {
+          version: '4.17.21',
+          packageName: 'lodash',
+          hash: 'sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==',
+        },
+      });
+
+      // Vitest should have integrity + patch hash combined
+      expect(externalNodes['npm:vitest']).toMatchObject({
+        type: 'npm',
+        name: 'npm:vitest',
+        data: {
+          version: '3.2.4',
+          packageName: 'vitest',
+          // This is hashArray([integrity, patchHash])
+          hash: 'sha512-LUCP5ev3GURDysTWiP47wRRUpLKMOfPh+yKTx3kVIEiu5KOMeqzpnYNsKyOoVrULivR8tLcks4+lga33Whn90A==|dde3c7a634692aefe0877c763192102a73d3451e6d12dae61df88fd1e6e9368e',
+        },
+      });
+    });
+
+    it('should detect patch hash changes', () => {
+      const lockFileWithPatch = `lockfileVersion: '9.0'
+
+patchedDependencies:
+  vitest:
+    hash: patch123
+    path: patches/vitest.patch
+
+importers:
+
+  .:
+    dependencies:
+      vitest:
+        specifier: 3.2.4
+        version: 3.2.4
+
+packages:
+
+  vitest@3.2.4:
+    resolution: {integrity: sha512-LUCP5ev3GURDysTWiP47wRRUpLKMOfPh+yKTx3kVIEiu5KOMeqzpnYNsKyOoVrULivR8tLcks4+lga33Whn90A==}
+
+snapshots:
+
+  vitest@3.2.4: {}`;
+
+      const lockFileWithModifiedPatch = `lockfileVersion: '9.0'
+
+patchedDependencies:
+  vitest:
+    hash: patch456
+    path: patches/vitest.patch
+
+importers:
+
+  .:
+    dependencies:
+      vitest:
+        specifier: 3.2.4
+        version: 3.2.4
+
+packages:
+
+  vitest@3.2.4:
+    resolution: {integrity: sha512-LUCP5ev3GURDysTWiP47wRRUpLKMOfPh+yKTx3kVIEiu5KOMeqzpnYNsKyOoVrULivR8tLcks4+lga33Whn90A==}
+
+snapshots:
+
+  vitest@3.2.4: {}`;
+
+      const { nodes: externalNodes1 } = getPnpmLockfileNodes(
+        lockFileWithPatch,
+        'test-lockfile-hash-1'
+      );
+
+      const { nodes: externalNodes2 } = getPnpmLockfileNodes(
+        lockFileWithModifiedPatch,
+        'test-lockfile-hash-2'
+      );
+
+      // Hashes should be different when patch changes
+      expect(externalNodes1['npm:vitest'].data.hash).not.toBe(
+        externalNodes2['npm:vitest'].data.hash
+      );
+
+      // First has integrity + patch123
+      expect(externalNodes1['npm:vitest'].data.hash).toBe(
+        'sha512-LUCP5ev3GURDysTWiP47wRRUpLKMOfPh+yKTx3kVIEiu5KOMeqzpnYNsKyOoVrULivR8tLcks4+lga33Whn90A==|patch123'
+      );
+
+      // Second has integrity + patch456
+      expect(externalNodes2['npm:vitest'].data.hash).toBe(
+        'sha512-LUCP5ev3GURDysTWiP47wRRUpLKMOfPh+yKTx3kVIEiu5KOMeqzpnYNsKyOoVrULivR8tLcks4+lga33Whn90A==|patch456'
+      );
+    });
+  });
 });
diff --git a/packages/nx/src/plugins/js/lock-file/pnpm-parser.ts b/packages/nx/src/plugins/js/lock-file/pnpm-parser.ts
index b4155eeecbce49..760c92f9ee46c8 100644
--- a/packages/nx/src/plugins/js/lock-file/pnpm-parser.ts
+++ b/packages/nx/src/plugins/js/lock-file/pnpm-parser.ts
@@ -114,13 +114,19 @@ function matchedDependencyName(
   );
 }
 
-function createHashFromSnapshot(snapshot: PackageSnapshot) {
-  return (
+function createHashFromSnapshot(snapshot: PackageSnapshot, patchHash?: string) {
+  const baseHash =
     snapshot.resolution?.['integrity'] ||
     (snapshot.resolution?.['tarball']
       ? hashArray([snapshot.resolution['tarball']])
-      : undefined)
-  );
+      : undefined);
+
+  // If there's a patch hash, combine it with the base hash
+  if (patchHash && baseHash) {
+    return hashArray([baseHash, patchHash]);
+  }
+
+  return baseHash;
 }
 
 function isAliasVersion(depVersion: string) {
@@ -137,6 +143,18 @@ function getNodes(
   const keyMap = new Map<string, Set<ProjectGraphExternalNode>>();
   const nodes: Map<string, Map<string, ProjectGraphExternalNode>> = new Map();
 
+  // Extract patch hashes from patchedDependencies section
+  const patchHashes = new Map<string, string>();
+  if (data.patchedDependencies) {
+    for (const [pkgName, patchInfo] of Object.entries(
+      data.patchedDependencies
+    )) {
+      if (patchInfo && typeof patchInfo === 'object' && 'hash' in patchInfo) {
+        patchHashes.set(pkgName, patchInfo.hash);
+      }
+    }
+  }
+
   const maybeAliasedPackageVersions = new Map<string, string>(); // <version, alias>
 
   if (data.importers['.'].optionalDependencies) {
@@ -179,7 +197,11 @@ function getNodes(
     if (!originalPackageName) {
       continue;
     }
-    const hash = createHashFromSnapshot(snapshot);
+
+    // Compute hash once, including patch hash if available
+    const patchHash = patchHashes.get(originalPackageName);
+    const hash = createHashFromSnapshot(snapshot, patchHash);
+
     // snapshot already has a name
     if (snapshot.name) {
       packageNameObj = {
@@ -210,7 +232,7 @@ function getNodes(
       packageNameObj = {
         key,
         packageName: rootDependencyName,
-        hash: createHashFromSnapshot(snapshot),
+        hash,
       };
     }
 
@@ -218,7 +240,7 @@ function getNodes(
       packageNameObj = {
         key,
         packageName: originalPackageName,
-        hash: createHashFromSnapshot(snapshot),
+        hash,
       };
     }