diff --git a/desktop/.eslintrc.js b/desktop/.eslintrc.js
index f4cebb4ed..efc6b734f 100644
--- a/desktop/.eslintrc.js
+++ b/desktop/.eslintrc.js
@@ -51,6 +51,7 @@ module.exports = {
     'react/react-in-jsx-scope': 0, // not needed with our metro implementation
     'react-hooks/rules-of-hooks': 'error',
     'react-hooks/exhaustive-deps': 'warn',
+    'react/jsx-key': 'error',
     'no-new': 0, // new keyword needed e.g. new Notification
     'no-catch-shadow': 0, // only relevant for IE8 and below
     'no-bitwise': 0, // bitwise operations needed in some places
diff --git a/desktop/app/src/chrome/ShareSheetErrorList.tsx b/desktop/app/src/chrome/ShareSheetErrorList.tsx
index 067499847..c1534e188 100644
--- a/desktop/app/src/chrome/ShareSheetErrorList.tsx
+++ b/desktop/app/src/chrome/ShareSheetErrorList.tsx
@@ -51,8 +51,10 @@ export default class Popover extends PureComponent<Props> {
       <VBox scrollable={true} maxHeight={300}>
         <Info type={this.props.type}>
           <Title bold>{this.props.title}</Title>
-          {this.props.errors.map((e: Error) => (
-            <ErrorMessage code>{formatError(e)}</ErrorMessage>
+          {this.props.errors.map((e: Error, index) => (
+            <ErrorMessage code key={index}>
+              {formatError(e)}
+            </ErrorMessage>
           ))}
         </Info>
       </VBox>
diff --git a/desktop/plugins/hermesdebuggerrn/SelectScreen.tsx b/desktop/plugins/hermesdebuggerrn/SelectScreen.tsx
index 102411d16..28d4cb64b 100644
--- a/desktop/plugins/hermesdebuggerrn/SelectScreen.tsx
+++ b/desktop/plugins/hermesdebuggerrn/SelectScreen.tsx
@@ -71,7 +71,7 @@ export default function SelectScreen(props: Props) {
         </Item>
         {props.targets.map((target) => {
           return (
-            <Item onClick={() => props.onSelect(target)}>
+            <Item onClick={() => props.onSelect(target)} key={target.id}>
               <Icon size={20} name="code" color={colors.info} />
               <FlexColumn>
                 <ItemTitle>{target.title}</ItemTitle>
diff --git a/desktop/plugins/leak_canary/index.tsx b/desktop/plugins/leak_canary/index.tsx
index e968a6081..0d97ab5f5 100644
--- a/desktop/plugins/leak_canary/index.tsx
+++ b/desktop/plugins/leak_canary/index.tsx
@@ -230,6 +230,7 @@ export default class LeakCanary<PersistedState> extends FlipperPlugin<
               const selected = selectedIdx == idx ? selectedEid : null;
               return (
                 <Panel
+                  key={idx}
                   collapsable={false}
                   padded={false}
                   heading={leak.title}
diff --git a/desktop/plugins/navigation/components/Timeline.tsx b/desktop/plugins/navigation/components/Timeline.tsx
index 592ed5b05..520f70254 100644
--- a/desktop/plugins/navigation/components/Timeline.tsx
+++ b/desktop/plugins/navigation/components/Timeline.tsx
@@ -68,9 +68,8 @@ export default (props: Props) => {
         <TimelineLine />
         {events.map((event: NavigationEvent, idx: number) => {
           return (
-            <NavigationEventContainer>
+            <NavigationEventContainer key={idx}>
               <NavigationInfoBox
-                key={idx}
                 isBookmarked={
                   event.uri != null ? bookmarks.has(event.uri) : false
                 }
diff --git a/desktop/plugins/network/RequestDetails.tsx b/desktop/plugins/network/RequestDetails.tsx
index 601e0af08..d43113869 100644
--- a/desktop/plugins/network/RequestDetails.tsx
+++ b/desktop/plugins/network/RequestDetails.tsx
@@ -578,7 +578,7 @@ class JSONTextFormatter {
         return body
           .split('\n')
           .map((json) => JSON.parse(json))
-          .map((data) => <JSONText>{data}</JSONText>);
+          .map((data, idx) => <JSONText key={idx}>{data}</JSONText>);
       }
     }
   };
diff --git a/desktop/plugins/sandbox/index.tsx b/desktop/plugins/sandbox/index.tsx
index 137bab25a..8670d96ae 100644
--- a/desktop/plugins/sandbox/index.tsx
+++ b/desktop/plugins/sandbox/index.tsx
@@ -128,9 +128,8 @@ export default class SandboxView extends FlipperPlugin<
           </SandboxView.FeedbackMessage>
         </SandboxView.TextInputLayout>
         {this.state.sandboxes.map((sandbox) => (
-          <ButtonContainer>
+          <ButtonContainer key={sandbox.value}>
             <BigButton
-              key={sandbox.value}
               onClick={() => this.onSendSandboxEnvironment(sandbox.value)}>
               {sandbox.name}
             </BigButton>