diff --git a/webapp/channels/package.json b/webapp/channels/package.json
index 17d187a7ce..72822ee446 100644
--- a/webapp/channels/package.json
+++ b/webapp/channels/package.json
@@ -96,7 +96,7 @@
     "timezones.json": "1.6.1",
     "tinycolor2": "1.4.2",
     "turndown": "7.1.1",
-    "typescript": "5.3.3",
+    "typescript": "5.5.4",
     "web-vitals": "4.2.0",
     "zen-observable": "0.9.0"
   },
diff --git a/webapp/channels/src/components/channel_bookmarks/channel_bookmarks_create_modal.tsx b/webapp/channels/src/components/channel_bookmarks/channel_bookmarks_create_modal.tsx
index d8e278dc90..2559b13641 100644
--- a/webapp/channels/src/components/channel_bookmarks/channel_bookmarks_create_modal.tsx
+++ b/webapp/channels/src/components/channel_bookmarks/channel_bookmarks_create_modal.tsx
@@ -666,8 +666,6 @@ export const useBookmarkLinkValidation = (link: string, onValidated: (validatedL
             try {
                 await fetch(url, {
                     mode: 'no-cors',
-
-                    // @ts-expect-error AbortSignal.any exists; remove this directive when next TS upgrade
                     signal: AbortSignal.any([signal, AbortSignal.timeout(REQUEST_TIMEOUT)]),
                 });
                 onValidated(link);
diff --git a/webapp/package-lock.json b/webapp/package-lock.json
index 31fb095466..c26f81173a 100644
--- a/webapp/package-lock.json
+++ b/webapp/package-lock.json
@@ -145,7 +145,7 @@
         "timezones.json": "1.6.1",
         "tinycolor2": "1.4.2",
         "turndown": "7.1.1",
-        "typescript": "5.3.3",
+        "typescript": "5.5.4",
         "web-vitals": "4.2.0",
         "zen-observable": "0.9.0"
       },
@@ -241,6 +241,18 @@
         "node": ">=10"
       }
     },
+    "channels/node_modules/typescript": {
+      "version": "5.5.4",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.5.4.tgz",
+      "integrity": "sha512-Mtq29sKDAEYP7aljRgtPOpTvOfbwRWlS6dPRzwjdE+C0R4brX/GUyhHSecbHMFLNBLcJIPt9nl9yG5TZ1weH+Q==",
+      "bin": {
+        "tsc": "bin/tsc",
+        "tsserver": "bin/tsserver"
+      },
+      "engines": {
+        "node": ">=14.17"
+      }
+    },
     "node_modules/@aashutoshrathi/word-wrap": {
       "version": "1.2.6",
       "license": "MIT",