diff --git a/src/connectors/numeric-menu/connectNumericMenu.ts b/src/connectors/numeric-menu/connectNumericMenu.ts
index fcbfd10e39..4e0ea20a87 100644
--- a/src/connectors/numeric-menu/connectNumericMenu.ts
+++ b/src/connectors/numeric-menu/connectNumericMenu.ts
@@ -42,7 +42,7 @@ export type NumericMenuRendererOptionsItem = {
    * URL encoded of the bounds object with the form `{start, end}`.
    * This value can be used verbatim in the webpage and can be read by `refine`
    * directly. If you want to inspect the value, you can do:
-   * `JSON.parse(window.decodeURI(value))` to get the object.
+   * `JSON.parse(decodeURI(value))` to get the object.
    */
   value: string;
 
@@ -166,7 +166,7 @@ const connectNumericMenu: NumericMenuConnector = function connectNumericMenu(
     const prepareItems = (state: SearchParameters) =>
       items.map(({ start, end, label }) => ({
         label,
-        value: (window as any).encodeURI(JSON.stringify({ start, end })),
+        value: encodeURI(JSON.stringify({ start, end })),
         isRefined: isRefined(state, attribute, { start, end, label }),
       }));
 
@@ -366,7 +366,7 @@ function getRefinedState(
 ) {
   let resolvedState = state;
 
-  const refinedOption = JSON.parse((window as any).decodeURI(facetValue));
+  const refinedOption = JSON.parse(decodeURI(facetValue));
 
   // @TODO: why is array / element mixed here & hasRefinements; seems wrong?
   const currentRefinements = resolvedState.getNumericRefinements(
diff --git a/stories/voice-search.stories.ts b/stories/voice-search.stories.ts
index 6bb65da917..be1069e1b2 100644
--- a/stories/voice-search.stories.ts
+++ b/stories/voice-search.stories.ts
@@ -58,8 +58,8 @@ storiesOf('Basics/VoiceSearch', module)
   .add(
     'with a custom button text',
     withHits(({ search, container }) => {
-      const style = window.document.createElement('style');
-      window.document.head.appendChild(style);
+      const style = document.createElement('style');
+      document.head.appendChild(style);
       [
         `.ais-VoiceSearch-button.custom-button:hover {
         background: inherit;
@@ -130,8 +130,8 @@ storiesOf('Basics/VoiceSearch', module)
       container.appendChild(subContainer1);
       container.appendChild(subContainer2);
 
-      const style = window.document.createElement('style');
-      window.document.head.appendChild(style);
+      const style = document.createElement('style');
+      document.head.appendChild(style);
       [
         `.voice-search-button {
           position: absolute;