diff --git a/app/client/package.json b/app/client/package.json
index 9cafe6b830..8ba3a57aed 100644
--- a/app/client/package.json
+++ b/app/client/package.json
@@ -7,11 +7,11 @@
     "npm": "6.9.0"
   },
   "dependencies": {
-    "@blueprintjs/core": "^3.11.0",
-    "@blueprintjs/datetime": "^3.6.0",
-    "@blueprintjs/icons": "^3.5.0",
+    "@blueprintjs/core": "^3.18.1",
+    "@blueprintjs/datetime": "^3.13.0",
+    "@blueprintjs/icons": "^3.10.0",
     "@blueprintjs/select": "^3.10.0",
-    "@blueprintjs/table": "^3.4.0",
+    "@blueprintjs/table": "^3.7.1",
     "@sentry/browser": "^5.6.3",
     "@types/axios": "^0.14.0",
     "@types/fontfaceobserver": "^0.0.6",
diff --git a/app/client/src/api/ApiRequests.tsx b/app/client/src/api/ApiRequests.tsx
index 3dcd00bea8..9b38c06ccd 100644
--- a/app/client/src/api/ApiRequests.tsx
+++ b/app/client/src/api/ApiRequests.tsx
@@ -1,8 +1,7 @@
-import { ContentType, EncodingType } from "../constants/ApiConstants";
+import { ContentType } from "../constants/ApiConstants";
 
 export interface APIHeaders {
   "Content-Type": ContentType;
-  "Accept-Encoding": EncodingType;
 }
 
 export interface APIRequest {
diff --git a/app/client/src/constants/ApiConstants.tsx b/app/client/src/constants/ApiConstants.tsx
index 05dc513fd5..e187328879 100644
--- a/app/client/src/constants/ApiConstants.tsx
+++ b/app/client/src/constants/ApiConstants.tsx
@@ -13,7 +13,6 @@ export const BASE_URL = STAGE_BASE_URL;
 export const REQUEST_TIMEOUT_MS = 2000;
 export const REQUEST_HEADERS: APIHeaders = {
   "Content-Type": "application/json",
-  "Accept-Encoding": "gzip",
 };
 
 export interface APIException {
diff --git a/app/client/src/sagas/WidgetOperationSagas.tsx b/app/client/src/sagas/WidgetOperationSagas.tsx
index 2be6e195ec..aa0fc7746a 100644
--- a/app/client/src/sagas/WidgetOperationSagas.tsx
+++ b/app/client/src/sagas/WidgetOperationSagas.tsx
@@ -56,9 +56,10 @@ export function* deleteSaga(deleteAction: ReduxAction<WidgetDelete>) {
   try {
     const { widgetId } = deleteAction.payload;
     const widgets = yield select(getWidgets) as any;
-    widgets[widgetId] = undefined;
+    delete widgets[widgetId];
     const parent = Object.values(widgets).find(
       (widget: any) =>
+        widget &&
         widget.children &&
         widget.children.length > 0 &&
         widget.children.indexOf(widgetId) > -1,
@@ -72,6 +73,7 @@ export function* deleteSaga(deleteAction: ReduxAction<WidgetDelete>) {
       payload: { widgets },
     });
   } catch (err) {
+    console.log(err);
     yield put({
       type: ReduxActionTypes.WIDGET_OPERATION_ERROR,
       action: ReduxActionTypes.WIDGET_DELETE,
diff --git a/app/client/yarn.lock b/app/client/yarn.lock
index 500e9df4a5..95bc8690f1 100644
--- a/app/client/yarn.lock
+++ b/app/client/yarn.lock
@@ -894,7 +894,7 @@
     lodash "^4.17.13"
     to-fast-properties "^2.0.0"
 
-"@blueprintjs/core@^3.11.0", "@blueprintjs/core@^3.18.0", "@blueprintjs/core@^3.18.1":
+"@blueprintjs/core@^3.18.0", "@blueprintjs/core@^3.18.1":
   version "3.18.1"
   resolved "https://registry.yarnpkg.com/@blueprintjs/core/-/core-3.18.1.tgz#cf180d470710a0e9123fb2449113be06cf0d81ce"
   integrity sha512-G+IhJsN006Mb32NLOrne5TLScxyyd3Id9g2MvfYFq9zuyBcBA5+V/uQy3pTO9vkmuKEz0GLLy8ZbrQ7Us/+zTw==
@@ -910,7 +910,7 @@
     resize-observer-polyfill "^1.5.1"
     tslib "~1.9.0"
 
-"@blueprintjs/datetime@^3.6.0":
+"@blueprintjs/datetime@^3.13.0":
   version "3.13.0"
   resolved "https://registry.yarnpkg.com/@blueprintjs/datetime/-/datetime-3.13.0.tgz#ba511a32870b1af82f49d06f8631cfb5995cdcc3"
   integrity sha512-0MShc0IJo4rSdhzKkVS+tKGIV9d4ZS/hh4jAtxCsAC7/fBFJ++rUZ+1QpWeRzG9yXi52pNLBXZyx+xxN/Vptsw==
@@ -920,7 +920,7 @@
     react-day-picker "^7.3.2"
     tslib "~1.9.0"
 
-"@blueprintjs/icons@^3.10.0", "@blueprintjs/icons@^3.5.0":
+"@blueprintjs/icons@^3.10.0":
   version "3.10.0"
   resolved "https://registry.yarnpkg.com/@blueprintjs/icons/-/icons-3.10.0.tgz#45cdb3ca62110e74bcf9e741237a6b4e2cf2c3a4"
   integrity sha512-lyAUpkr3qEStPcJpMnxRKuVAPvaRNSce1ySPbkE58zPmD4WBya2gNrWex41xoqRYM0GsiBSwH9CnpY8t6fZKUA==
@@ -937,7 +937,7 @@
     classnames "^2.2"
     tslib "~1.9.0"
 
-"@blueprintjs/table@^3.4.0":
+"@blueprintjs/table@^3.7.1":
   version "3.7.1"
   resolved "https://registry.yarnpkg.com/@blueprintjs/table/-/table-3.7.1.tgz#3e3e876a2f0b8bebfc26d4bf8350a120614c88aa"
   integrity sha512-NSdwjBhhsSTq1lgdRWwsDGavhAbG3j/CH86kmtBaH3msHz3ENjowjeuw1JBryJZLl0raGDV0Ln3kbQ93AKuPXw==