diff --git a/packages/docs/src/pages/tutorial/introduction/listeners/solution/app.tsx b/packages/docs/src/pages/tutorial/introduction/listeners/solution/app.tsx
index 5d1052d4377..ef83e8070fe 100644
--- a/packages/docs/src/pages/tutorial/introduction/listeners/solution/app.tsx
+++ b/packages/docs/src/pages/tutorial/introduction/listeners/solution/app.tsx
@@ -12,7 +12,7 @@ export const App = component$(() => {
         GitHub username:
         <input
           value={github.org}
-          onKeyup$={(ev) => (github.org = (ev.target as HTMLInputElement).value)}
+          onKeyUp$={(ev) => (github.org = (ev.target as HTMLInputElement).value)}
         />
       </span>
       <div>
diff --git a/starters/apps/starter-partytown/src/components/app/app.tsx b/starters/apps/starter-partytown/src/components/app/app.tsx
index 50c4549442e..0999e2c08a4 100644
--- a/starters/apps/starter-partytown/src/components/app/app.tsx
+++ b/starters/apps/starter-partytown/src/components/app/app.tsx
@@ -56,7 +56,7 @@ export const App = component$(() => {
           Try interacting with this component by changing{' '}
           <input
             value={state.name}
-            onKeyup$={(event) => {
+            onKeyUp$={(event) => {
               const input = event.target as HTMLInputElement;
               state.name = input.value;
             }}
diff --git a/starters/apps/todo-old.test/src/components/header/header.tsx b/starters/apps/todo-old.test/src/components/header/header.tsx
index eae703afa99..d3b4a3398d7 100644
--- a/starters/apps/todo-old.test/src/components/header/header.tsx
+++ b/starters/apps/todo-old.test/src/components/header/header.tsx
@@ -17,7 +17,7 @@ export const Header = component$(
           placeholder="What needs to be done?"
           autoFocus
           value={state.text}
-          onKeyup$={(event: any) => {
+          onKeyUp$={(event: any) => {
             const inputValue = (event.target as HTMLInputElement).value;
             state.text = inputValue;
             if (event.key === 'Enter' && inputValue) {
diff --git a/starters/apps/todo-old.test/src/components/item/item.tsx b/starters/apps/todo-old.test/src/components/item/item.tsx
index 9d2d075fd61..6978dfdf5e5 100644
--- a/starters/apps/todo-old.test/src/components/item/item.tsx
+++ b/starters/apps/todo-old.test/src/components/item/item.tsx
@@ -58,7 +58,7 @@ export const Item = component$(
             ref={editInput}
             value={props.item.title}
             onBlur$={() => (state.editing = false)}
-            onKeyup$={(event: any) => {
+            onKeyUp$={(event: any) => {
               const inputValue = (event.target as HTMLInputElement).value;
               props.item.title = inputValue;
               if (event.key === 'Enter') {
diff --git a/starters/apps/todo/src/components/header/header.tsx b/starters/apps/todo/src/components/header/header.tsx
index b27fe7eab47..f6c22bc8dc9 100644
--- a/starters/apps/todo/src/components/header/header.tsx
+++ b/starters/apps/todo/src/components/header/header.tsx
@@ -18,7 +18,7 @@ export const Header = component$(
           placeholder="What needs to be done?"
           autoFocus
           value={state.text}
-          onKeyup$={(event: any) => {
+          onKeyUp$={(event: any) => {
             const inputValue = (event.target as HTMLInputElement).value;
             state.text = inputValue;
             if (event.key === 'Enter' && inputValue) {
diff --git a/starters/apps/todo/src/components/item/item.tsx b/starters/apps/todo/src/components/item/item.tsx
index 1a6c7ee0618..ac2128e63af 100644
--- a/starters/apps/todo/src/components/item/item.tsx
+++ b/starters/apps/todo/src/components/item/item.tsx
@@ -58,7 +58,7 @@ export const Item = component$(
             ref={editInput}
             value={props.item.title}
             onBlur$={() => (state.editing = false)}
-            onKeyup$={(event: any) => {
+            onKeyUp$={(event: any) => {
               const inputValue = (event.target as HTMLInputElement).value;
               props.item.title = inputValue;
               if (event.key === 'Enter') {