diff --git a/package.json b/package.json
index 091fb2fd..91b427ae 100644
--- a/package.json
+++ b/package.json
@@ -270,7 +270,7 @@
     "react-scripts": "^5.0.1",
     "react-test-renderer": "18.2.0",
     "ts-node": "^10.9.1",
-    "typescript": "^5.3.3",
+    "typescript": "^5.5.4",
     "url-loader": "^4.1.1",
     "webpack": "^5.75.0",
     "webpack-bundle-analyzer": "^4.10.1",
diff --git a/src/components/dialogs/ThreadgateEditor.tsx b/src/components/dialogs/ThreadgateEditor.tsx
index 92dd157b..90483b3a 100644
--- a/src/components/dialogs/ThreadgateEditor.tsx
+++ b/src/components/dialogs/ThreadgateEditor.tsx
@@ -74,7 +74,9 @@ function DialogContent({
 
   const onPressAudience = (setting: ThreadgateSetting) => {
     // remove nobody
-    let newSelected = draft.filter(v => v.type !== 'nobody')
+    let newSelected: ThreadgateSetting[] = draft.filter(
+      v => v.type !== 'nobody',
+    )
     // toggle
     const i = newSelected.findIndex(v => isEqual(v, setting))
     if (i === -1) {
diff --git a/src/state/queries/post-feed.ts b/src/state/queries/post-feed.ts
index 62ea0f33..1d6ec80d 100644
--- a/src/state/queries/post-feed.ts
+++ b/src/state/queries/post-feed.ts
@@ -375,11 +375,11 @@ export function usePostFeedQuery(
                         }
                         return undefined
                       })
-                      .filter(<T>(n?: T): n is T => Boolean(n)),
+                      .filter(n => !!n),
                   }
                   return feedPostSlice
                 })
-                .filter(<T>(n?: T): n is T => Boolean(n)),
+                .filter(n => !!n),
             })),
           ],
         }
diff --git a/src/state/queries/threadgate.ts b/src/state/queries/threadgate.ts
index c05d1f56..8b6aeba6 100644
--- a/src/state/queries/threadgate.ts
+++ b/src/state/queries/threadgate.ts
@@ -33,6 +33,6 @@ export function threadgateViewToSettings(
       }
       return setting
     })
-    .filter(<T>(n?: T): n is T => Boolean(n))
+    .filter(n => !!n)
   return settings
 }
diff --git a/src/view/screens/Search/Explore.tsx b/src/view/screens/Search/Explore.tsx
index e9b74452..5510fbee 100644
--- a/src/view/screens/Search/Explore.tsx
+++ b/src/view/screens/Search/Explore.tsx
@@ -119,7 +119,7 @@ function LoadMore({
         }
         return loadMoreItem
       })
-      .filter(<T,>(n?: T): n is T => Boolean(n))
+      .filter(n => !!n)
   }, [item.items, moderationOpts])
 
   if (items.length === 0) return null
diff --git a/yarn.lock b/yarn.lock
index b99f9634..675fda4c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -21378,10 +21378,10 @@ typedarray-to-buffer@^3.1.5:
   dependencies:
     is-typedarray "^1.0.0"
 
-typescript@^5.3.3:
-  version "5.3.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.3.3.tgz#b3ce6ba258e72e6305ba66f5c9b452aaee3ffe37"
-  integrity sha512-pXWcraxM0uxAS+tN0AG/BF2TyqmHO014Z070UsJ+pFvYuRSq8KH8DmWpnbXe0pEPDHXZV3FcAbJkijJ5oNEnWw==
+typescript@^5.5.4:
+  version "5.5.4"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.5.4.tgz#d9852d6c82bad2d2eda4fd74a5762a8f5909e9ba"
+  integrity sha512-Mtq29sKDAEYP7aljRgtPOpTvOfbwRWlS6dPRzwjdE+C0R4brX/GUyhHSecbHMFLNBLcJIPt9nl9yG5TZ1weH+Q==
 
 ua-parser-js@^0.7.33:
   version "0.7.35"