diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index c06da8d..bd53d4b 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -18,6 +18,9 @@ jobs:
           cache: npm
       - run: npm ci
       - run: npm run build
+      # https://github.com/gr2m/octokit-plugin-create-pull-request/pull/127/
+      - name: "Fix pkg.files file pattern"
+        run: node scripts/fix-package-json.js
       - run: npx semantic-release
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/scripts/fix-package-json.js b/scripts/fix-package-json.js
new file mode 100644
index 0000000..76ab50e
--- /dev/null
+++ b/scripts/fix-package-json.js
@@ -0,0 +1,15 @@
+const fs = require("fs");
+const path = require("path");
+const { EOL } = require("os");
+
+const pkgPath = path.join(__dirname, "../pkg/package.json");
+const pkg = JSON.parse(fs.readFileSync(pkgPath, "utf8"));
+
+pkg.files = pkg.files.map((file) => {
+  if (file.endsWith("/")) {
+    return file + "**";
+  }
+  return file;
+});
+
+fs.writeFileSync(pkgPath, JSON.stringify(pkg, null, 2) + EOL, "utf8");