diff --git a/packages/@uppy/companion/package.json b/packages/@uppy/companion/package.json
index 6cd3d33c9..51919e1d0 100644
--- a/packages/@uppy/companion/package.json
+++ b/packages/@uppy/companion/package.json
@@ -103,7 +103,7 @@
     "http-proxy": "1.18.1",
     "nock": "^13.1.3",
     "supertest": "7.2.2",
-    "typescript": "^5.8.3",
+    "typescript": "6.0.3",
     "vitest": "^3.2.4"
   },
   "files": [
diff --git a/yarn.lock b/yarn.lock
index 8d8b60f64..397abf984 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8694,7 +8694,7 @@ __metadata:
     supertest: "npm:7.2.2"
     supports-color: "npm:10.2.2"
     tus-js-client: "npm:4.3.1"
-    typescript: "npm:^5.8.3"
+    typescript: "npm:6.0.3"
     validator: "npm:13.15.35"
     vitest: "npm:^3.2.4"
     webdav: "npm:5.10.0"
@@ -22427,6 +22427,16 @@ __metadata:
   languageName: node
   linkType: hard
 
+"typescript@npm:6.0.3":
+  version: 6.0.3
+  resolution: "typescript@npm:6.0.3"
+  bin:
+    tsc: bin/tsc
+    tsserver: bin/tsserver
+  checksum: 10/0ef2357a4cffd916b52b683a021cdab0f81eea4e9aa35f2d254581c9a5106da02224e3392e1b0ed42b7a48f80c966e5f52b8e1a27941fa0523c1705a9c2e0330
+  languageName: node
+  linkType: hard
+
 "typescript@npm:^5, typescript@npm:^5.0.0, typescript@npm:^5.1.6, typescript@npm:^5.7.3, typescript@npm:^5.8.3":
   version: 5.9.2
   resolution: "typescript@npm:5.9.2"
@@ -22457,6 +22467,16 @@ __metadata:
   languageName: node
   linkType: hard
 
+"typescript@patch:typescript@npm%3A6.0.3#optional!builtin<compat/typescript>":
+  version: 6.0.3
+  resolution: "typescript@patch:typescript@npm%3A6.0.3#optional!builtin<compat/typescript>::version=6.0.3&hash=5786d5"
+  bin:
+    tsc: bin/tsc
+    tsserver: bin/tsserver
+  checksum: 10/22b67a18dafedf9b1468b64ca20d9aa02ea61d449b65413d8aa6552aeb63f52ef369e86beb25b6b4c91a803d9726ee5c196f391a9b64201263263410a4223ee6
+  languageName: node
+  linkType: hard
+
 "typescript@patch:typescript@npm%3A^5#optional!builtin<compat/typescript>, typescript@patch:typescript@npm%3A^5.0.0#optional!builtin<compat/typescript>, typescript@patch:typescript@npm%3A^5.1.6#optional!builtin<compat/typescript>, typescript@patch:typescript@npm%3A^5.7.3#optional!builtin<compat/typescript>, typescript@patch:typescript@npm%3A^5.8.3#optional!builtin<compat/typescript>":
   version: 5.9.2
   resolution: "typescript@patch:typescript@npm%3A5.9.2#optional!builtin<compat/typescript>::version=5.9.2&hash=5786d5"