diff --git a/.changeset/lucky-parents-post.md b/.changeset/lucky-parents-post.md
new file mode 100644
index 0000000000..e726739c4d
--- /dev/null
+++ b/.changeset/lucky-parents-post.md
@@ -0,0 +1,6 @@
+---
+"@pnpm/fs.find-packages": patch
+"pnpm": patch
+---
+
+Do not hang indefinitely, when there is a glob that starts with `!/` in `pnpm-workspace.yaml`. This fixes a regression introduced by [#9169](https://github.com/pnpm/pnpm/pull/9169).
diff --git a/fs/find-packages/src/index.ts b/fs/find-packages/src/index.ts
index 07329474e7..c315f872ff 100644
--- a/fs/find-packages/src/index.ts
+++ b/fs/find-packages/src/index.ts
@@ -69,7 +69,11 @@ export async function findPackages (root: string, opts?: Options): Promise<Proje
 
 function normalizePatterns (patterns: readonly string[]): string[] {
   const normalizedPatterns: string[] = []
-  for (const pattern of patterns) {
+  for (let pattern of patterns) {
+    // For some reason tinyglobby hangs indefinitely with !/
+    if (pattern.startsWith('!/')) {
+      pattern = `!${pattern.substring(2)}`
+    }
     // We should add separate pattern for each extension
     // for some reason, fast-glob is buggy with /package.{json,yaml,json5} pattern
     normalizedPatterns.push(