diff --git a/app/client/package.json b/app/client/package.json
index 452309a436..99346e9193 100644
--- a/app/client/package.json
+++ b/app/client/package.json
@@ -66,6 +66,7 @@
     "@tinymce/tinymce-react": "^3.13.0",
     "@types/google.maps": "^3.51.0",
     "@types/react-page-visibility": "^6.4.1",
+    "@types/web": "^0.0.99",
     "@uppy/core": "^1.16.0",
     "@uppy/dashboard": "^1.16.0",
     "@uppy/file-input": "^1.4.22",
diff --git a/app/client/src/components/editorComponents/CodeEditor/EvaluatedValuePopup.tsx b/app/client/src/components/editorComponents/CodeEditor/EvaluatedValuePopup.tsx
index 21181e1b5b..09c0460c07 100644
--- a/app/client/src/components/editorComponents/CodeEditor/EvaluatedValuePopup.tsx
+++ b/app/client/src/components/editorComponents/CodeEditor/EvaluatedValuePopup.tsx
@@ -668,7 +668,6 @@ function EvaluatedValuePopup(props: Props) {
           }}
           onMouseLeave={() => {
             const id = setTimeout(() => setContentHovered(false), 500);
-            // @ts-expect-error: setTimeout return type mismatch
             setTimeoutId(id);
           }}
           preparedStatementViewer={
diff --git a/app/client/src/pages/Editor/gitSync/Tabs/GitConnection.tsx b/app/client/src/pages/Editor/gitSync/Tabs/GitConnection.tsx
index f2b7cd0962..10cc5de8bd 100644
--- a/app/client/src/pages/Editor/gitSync/Tabs/GitConnection.tsx
+++ b/app/client/src/pages/Editor/gitSync/Tabs/GitConnection.tsx
@@ -195,7 +195,6 @@ function GitConnection({ isImport }: Props) {
   }, []);
 
   const stopShowingCopiedAfterDelay = () => {
-    // @ts-expect-error: setTimeout return type mismatch
     timerRef.current = setTimeout(() => {
       setShowCopied(false);
     }, 2000);
diff --git a/app/client/src/pages/common/CanvasArenas/hooks/useCanvasDragToScroll.ts b/app/client/src/pages/common/CanvasArenas/hooks/useCanvasDragToScroll.ts
index ac86991473..b50ceca89e 100644
--- a/app/client/src/pages/common/CanvasArenas/hooks/useCanvasDragToScroll.ts
+++ b/app/client/src/pages/common/CanvasArenas/hooks/useCanvasDragToScroll.ts
@@ -48,7 +48,6 @@ export const useCanvasDragToScroll = (
               behavior: "smooth",
             });
           }
-          // @ts-expect-error: setTimeout return type mismatch
           scrollTimeOut.push(setTimeout(scrollFn, 100 * Math.max(0.4, speed)));
         }
       };
diff --git a/app/client/src/sagas/FormEvaluationSaga.ts b/app/client/src/sagas/FormEvaluationSaga.ts
index 3d0f804c8b..f8fe063d8f 100644
--- a/app/client/src/sagas/FormEvaluationSaga.ts
+++ b/app/client/src/sagas/FormEvaluationSaga.ts
@@ -231,7 +231,7 @@ function* fetchDynamicValueSaga(
     }
 
     // Call the API to fetch the dynamic values
-    const response: ApiResponse = yield call(
+    const response: ApiResponse<{ trigger?: unknown }> = yield call(
       PluginsApi.fetchDynamicFormValues,
       url,
       {
@@ -243,7 +243,6 @@ function* fetchDynamicValueSaga(
       },
     );
     dynamicFetchedValues.isLoading = false;
-    // @ts-expect-error: we don't know what the response will be
     if (response.responseMeta.status === 200 && "trigger" in response.data) {
       dynamicFetchedValues.data = response.data.trigger;
       dynamicFetchedValues.hasFetchFailed = false;
diff --git a/app/client/src/utils/WorkerUtil.test.ts b/app/client/src/utils/WorkerUtil.test.ts
index f5e7e7cfc1..731ae9aa2a 100644
--- a/app/client/src/utils/WorkerUtil.test.ts
+++ b/app/client/src/utils/WorkerUtil.test.ts
@@ -61,10 +61,8 @@ class MockWorkerClass implements WorkerClass {
         body: { data: message.body.data },
       };
       this.sendEvent({ data: response });
-      // @ts-expect-error: setTimeout return type mismatch
       this.responses.delete(counter);
     }, this.delayMilliSeconds);
-    // @ts-expect-error: setTimeout return type mismatch
     this.responses.add(counter);
   }
 
diff --git a/app/client/src/widgets/ButtonGroupWidget/component/index.tsx b/app/client/src/widgets/ButtonGroupWidget/component/index.tsx
index 98093b30f0..40be1f2043 100644
--- a/app/client/src/widgets/ButtonGroupWidget/component/index.tsx
+++ b/app/client/src/widgets/ButtonGroupWidget/component/index.tsx
@@ -408,7 +408,6 @@ class ButtonGroupComponent extends React.Component<
       };
     });
 
-    // @ts-expect-error: setTimeout return type mismatch
     this.timer = setTimeout(() => {
       this.setState(() => {
         return {
diff --git a/app/client/src/widgets/TableWidgetV2/widget/index.tsx b/app/client/src/widgets/TableWidgetV2/widget/index.tsx
index a561cef98b..8da52c9916 100644
--- a/app/client/src/widgets/TableWidgetV2/widget/index.tsx
+++ b/app/client/src/widgets/TableWidgetV2/widget/index.tsx
@@ -2421,7 +2421,6 @@ class TableWidgetV2 extends BaseWidget<TableWidgetProps, WidgetState> {
        * We need to let the evaulations compute derived property (filteredTableData)
        * before we clear the editableCell to avoid the text flickering
        */
-      // @ts-expect-error: setTimeout return type mismatch
       this.inlineEditTimer = setTimeout(clear, 100);
     }
   };
diff --git a/app/client/src/workers/Evaluation/fns/overrides/fetch.ts b/app/client/src/workers/Evaluation/fns/overrides/fetch.ts
index 46233ddbaa..f3ced6db32 100644
--- a/app/client/src/workers/Evaluation/fns/overrides/fetch.ts
+++ b/app/client/src/workers/Evaluation/fns/overrides/fetch.ts
@@ -1,6 +1,9 @@
 const _originalFetch = self.fetch;
 
 export function fetch(...args: Parameters<typeof _originalFetch>) {
-  const request = new Request(args[0], { ...args[1], credentials: "omit" });
+  const request = new Request(args[0] as string, {
+    ...args[1],
+    credentials: "omit",
+  });
   return _originalFetch(request);
 }
diff --git a/app/client/yarn.lock b/app/client/yarn.lock
index 1e1815fa37..6d05005418 100644
--- a/app/client/yarn.lock
+++ b/app/client/yarn.lock
@@ -8223,6 +8223,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@types/web@npm:^0.0.99":
+  version: 0.0.99
+  resolution: "@types/web@npm:0.0.99"
+  checksum: 5298e64fc9db63f7da840dff77cd770c0568d3162eac406aa74e3a251c58377d370398a1d9402feb4fc49afa615808ac85be966e59fa96677a23dfd1df89ef9a
+  languageName: node
+  linkType: hard
+
 "@types/webfontloader@npm:1.6.33":
   version: 1.6.33
   resolution: "@types/webfontloader@npm:1.6.33"
@@ -9593,6 +9600,7 @@ __metadata:
     "@types/tinycolor2": ^1.4.2
     "@types/to-json-schema": ^0.2.1
     "@types/toposort": ^2.0.3
+    "@types/web": ^0.0.99
     "@types/webfontloader": 1.6.33
     "@types/zipcelx": ^1.5.0
     "@typescript-eslint/eslint-plugin": ^5.54.1