diff --git a/.changeset/cuddly-monkeys-unite.md b/.changeset/cuddly-monkeys-unite.md
new file mode 100644
index 00000000..63a03555
--- /dev/null
+++ b/.changeset/cuddly-monkeys-unite.md
@@ -0,0 +1,5 @@
+---
+"@livekit/protocol": patch
+---
+
+Downgrade TypeScript to fix incorrect generated typings
diff --git a/packages/javascript/package.json b/packages/javascript/package.json
index 09bc09b8..a496504a 100644
--- a/packages/javascript/package.json
+++ b/packages/javascript/package.json
@@ -34,7 +34,7 @@
     "@bufbuild/protoc-gen-es": "^1.10.0",
     "genversion": "^3.2.0",
     "tsup": "^8.3.5",
-    "typescript": "^5.7.2"
+    "typescript": "^5.2"
   },
   "dependencies": {
     "@bufbuild/protobuf": "^1.10.0"
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 9eb84fea..6a521334 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -34,7 +34,7 @@ importers:
         specifier: ^8.3.5
         version: 8.3.5(typescript@5.7.2)
       typescript:
-        specifier: ^5.7.2
+        specifier: ^5.2
         version: 5.7.2
 
 packages: