diff --git a/packages/js/migrations.json b/packages/js/migrations.json
index 9f832fdd83775..23b702a8c1d49 100644
--- a/packages/js/migrations.json
+++ b/packages/js/migrations.json
@@ -11,6 +11,12 @@
       "version": "13.8.5-beta.1",
       "description": "Adjust .swcrc to .lib.swcrc",
       "factory": "./src/migrations/update-13-8-5/update-swcrc"
+    },
+    "update-swcrc-exclude": {
+      "cli": "nx",
+      "version": "13.10.1-beta.1",
+      "description": "Update .lib.swcrc to exclude missing test files",
+      "factory": "./src/migrations/update-13-10-1/update-lib-swcrc-exclude"
     }
   },
   "packageJsonUpdates": {}
diff --git a/packages/js/src/migrations/update-13-10-1/__snapshots__/update-lib-swcrc-exclude.spec.ts.snap b/packages/js/src/migrations/update-13-10-1/__snapshots__/update-lib-swcrc-exclude.spec.ts.snap
new file mode 100644
index 0000000000000..c32b52734d3fc
--- /dev/null
+++ b/packages/js/src/migrations/update-13-10-1/__snapshots__/update-lib-swcrc-exclude.spec.ts.snap
@@ -0,0 +1,35 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`Update .lib.swcrc exclude should update the exclude pattern 1`] = `
+"{
+  \\"jsc\\": {
+    \\"target\\": \\"es2017\\",
+    \\"parser\\": {
+      \\"syntax\\": \\"typescript\\",
+      \\"decorators\\": true,
+      \\"dynamicImport\\": true
+    },
+    \\"transform\\": {
+      \\"decoratorMetadata\\": true,
+      \\"legacyDecorator\\": true
+    },
+    \\"keepClassNames\\": true,
+    \\"externalHelpers\\": true,
+    \\"loose\\": true
+  },
+  \\"module\\": {
+    \\"type\\": \\"commonjs\\",
+    \\"strict\\": true,
+    \\"noInterop\\": true
+  },
+  \\"sourceMaps\\": true,
+  \\"exclude\\": [
+    \\".*.spec.tsx?$\\",
+    \\".*.test.tsx?$\\",
+    \\"./src/jest-setup.ts$\\",
+    \\"./**/jest-setup.ts$\\",
+    \\".*.js$\\"
+  ]
+}
+"
+`;
diff --git a/packages/js/src/migrations/update-13-10-1/update-lib-swcrc-exclude.spec.ts b/packages/js/src/migrations/update-13-10-1/update-lib-swcrc-exclude.spec.ts
new file mode 100644
index 0000000000000..5d1861d27808f
--- /dev/null
+++ b/packages/js/src/migrations/update-13-10-1/update-lib-swcrc-exclude.spec.ts
@@ -0,0 +1,90 @@
+import {
+  addProjectConfiguration,
+  ProjectConfiguration,
+  readJson,
+  Tree,
+  updateJson,
+} from '@nrwl/devkit';
+import { createTreeWithEmptyWorkspace } from '@nrwl/devkit/testing';
+import updateSwcRcExclude from './update-lib-swcrc-exclude';
+
+const projectConfig: ProjectConfiguration = {
+  root: 'libs/swc-lib',
+  sourceRoot: 'libs/swc-lib/src',
+  targets: {
+    build: {
+      executor: '@nrwl/js:swc',
+      outputs: ['{options.outputPath}'],
+      options: {
+        outputPath: 'dist/libs/swc-lib',
+        main: 'libs/swc-lib/src/index.ts',
+        tsConfig: 'libs/swc-lib/tsconfig.lib.json',
+        assets: ['libs/swc-lib/*.md'],
+      },
+    },
+  },
+};
+const oldSwcRc = {
+  jsc: {
+    target: 'es2017',
+    parser: {
+      syntax: 'typescript',
+      decorators: true,
+      dynamicImport: true,
+    },
+    transform: {
+      decoratorMetadata: true,
+      legacyDecorator: true,
+    },
+    keepClassNames: true,
+    externalHelpers: true,
+    loose: true,
+  },
+  module: {
+    type: 'commonjs',
+    strict: true,
+    noInterop: true,
+  },
+  sourceMaps: true,
+  exclude: [
+    './src/**/.*.spec.ts$',
+    './**/.*.spec.ts$',
+    './src/**/jest-setup.ts$',
+    './**/jest-setup.ts$',
+    './**/.*.js$',
+  ],
+};
+describe('Update .lib.swcrc exclude', () => {
+  let tree: Tree;
+  beforeEach(() => {
+    tree = createTreeWithEmptyWorkspace();
+    addProjectConfiguration(tree, 'swc-lib', projectConfig);
+
+    tree.write('libs/swc-lib/.lib.swcrc', JSON.stringify(oldSwcRc));
+  });
+
+  it('should update the exclude pattern', () => {
+    updateSwcRcExclude(tree);
+    expect(tree.read('libs/swc-lib/.lib.swcrc', 'utf-8')).toMatchSnapshot();
+  });
+
+  it('should NOT update the exclude pattern if not present', () => {
+    updateJson(tree, 'libs/swc-lib/.lib.swcrc', (json) => {
+      delete json.exclude;
+      return json;
+    });
+
+    const before = readJson(tree, 'libs/swc-lib/.lib.swcrc');
+    updateSwcRcExclude(tree);
+    const after = readJson(tree, 'libs/swc-lib/.lib.swcrc');
+
+    expect(after.exclude).toBeFalsy();
+    expect(after).toEqual(before);
+  });
+
+  it('should do nothing if .lib.swcrc doest not exist', () => {
+    tree.delete('libs/swc-lib/.lib-swcrc');
+
+    expect(() => updateSwcRcExclude(tree)).not.toThrowError();
+  });
+});
diff --git a/packages/js/src/migrations/update-13-10-1/update-lib-swcrc-exclude.ts b/packages/js/src/migrations/update-13-10-1/update-lib-swcrc-exclude.ts
new file mode 100644
index 0000000000000..6a4f4755923f8
--- /dev/null
+++ b/packages/js/src/migrations/update-13-10-1/update-lib-swcrc-exclude.ts
@@ -0,0 +1,41 @@
+import { readProjectConfiguration, Tree, updateJson } from '@nrwl/devkit';
+import { forEachExecutorOptions } from '@nrwl/workspace/src/utilities/executor-options-utils';
+import { join } from 'path';
+import { SwcExecutorOptions } from '../../utils/schema';
+import { defaultExclude } from '../../utils/swc/add-swc-config';
+
+export default function updateSwcRcExclude(tree: Tree) {
+  forEachExecutorOptions(
+    tree,
+    '@nrwl/js:swc',
+    (config: SwcExecutorOptions, projectName) => {
+      const projectConfig = readProjectConfiguration(tree, projectName);
+      const libSwcPath = join(projectConfig.root, '.lib.swcrc');
+
+      if (!tree.exists(libSwcPath)) return;
+
+      updateJson(
+        tree,
+        libSwcPath,
+        (json) => {
+          if (json.exclude) {
+            const excludePatterns = new Set([
+              ...defaultExclude,
+              ...json.exclude,
+            ]);
+            // remove old patterns that are duplicate for new patterns
+            // defined in defaultExclude
+            excludePatterns.delete('./**/.*.spec.ts$');
+            excludePatterns.delete('./src/**/.*.spec.ts$');
+            excludePatterns.delete('./**/.*.js$');
+            excludePatterns.delete('./src/**/jest-setup.ts$');
+
+            json.exclude = [...excludePatterns];
+          }
+          return json;
+        },
+        { expectComments: true }
+      );
+    }
+  );
+}
diff --git a/packages/js/src/utils/swc/add-swc-config.ts b/packages/js/src/utils/swc/add-swc-config.ts
index b3f9764b08367..892088026cfaf 100644
--- a/packages/js/src/utils/swc/add-swc-config.ts
+++ b/packages/js/src/utils/swc/add-swc-config.ts
@@ -4,11 +4,11 @@ import { Tree } from '@nrwl/devkit';
 import { join } from 'path';
 
 export const defaultExclude = [
-  './src/**/.*.spec.ts$',
-  './**/.*.spec.ts$',
-  './src/**/jest-setup.ts$',
+  '.*.spec.tsx?$',
+  '.*.test.tsx?$',
+  './src/jest-setup.ts$',
   './**/jest-setup.ts$',
-  './**/.*.js$',
+  '.*.js$',
 ];
 
 const swcOptionsString = () => `{