diff --git a/src/events/sl-after-collapse.ts b/src/events/sl-after-collapse.ts
index aeeabf9f..d5689a9e 100644
--- a/src/events/sl-after-collapse.ts
+++ b/src/events/sl-after-collapse.ts
@@ -1,4 +1,4 @@
-type SlAfterCollapseEvent = CustomEvent<null>;
+type SlAfterCollapseEvent = CustomEvent<Record<string, never>>;
 
 declare global {
   interface GlobalEventHandlersEventMap {
diff --git a/src/events/sl-after-expand.ts b/src/events/sl-after-expand.ts
index df32cf1b..abd8769e 100644
--- a/src/events/sl-after-expand.ts
+++ b/src/events/sl-after-expand.ts
@@ -1,4 +1,4 @@
-type SlAfterExpandEvent = CustomEvent<null>;
+type SlAfterExpandEvent = CustomEvent<Record<string, never>>;
 
 declare global {
   interface GlobalEventHandlersEventMap {
diff --git a/src/events/sl-after-hide.ts b/src/events/sl-after-hide.ts
index 8f0d0ab2..2f4c5bde 100644
--- a/src/events/sl-after-hide.ts
+++ b/src/events/sl-after-hide.ts
@@ -1,4 +1,4 @@
-type SlAfterHideEvent = CustomEvent<null>;
+type SlAfterHideEvent = CustomEvent<Record<string, never>>;
 
 declare global {
   interface GlobalEventHandlersEventMap {
diff --git a/src/events/sl-after-show.ts b/src/events/sl-after-show.ts
index f12fa2ca..cf513ef6 100644
--- a/src/events/sl-after-show.ts
+++ b/src/events/sl-after-show.ts
@@ -1,4 +1,4 @@
-type SlAfterShowEvent = CustomEvent<null>;
+type SlAfterShowEvent = CustomEvent<Record<string, never>>;
 
 declare global {
   interface GlobalEventHandlersEventMap {
diff --git a/src/events/sl-blur.ts b/src/events/sl-blur.ts
index d12780c9..c3048a0a 100644
--- a/src/events/sl-blur.ts
+++ b/src/events/sl-blur.ts
@@ -1,4 +1,4 @@
-type SlBlurEvent = CustomEvent<null>;
+type SlBlurEvent = CustomEvent<Record<string, never>>;
 
 declare global {
   interface GlobalEventHandlersEventMap {
diff --git a/src/events/sl-cancel.ts b/src/events/sl-cancel.ts
index eec6ac99..3b744794 100644
--- a/src/events/sl-cancel.ts
+++ b/src/events/sl-cancel.ts
@@ -1,4 +1,4 @@
-type SlCancelEvent = CustomEvent<null>;
+type SlCancelEvent = CustomEvent<Record<string, never>>;
 
 declare global {
   interface GlobalEventHandlersEventMap {
diff --git a/src/events/sl-change.ts b/src/events/sl-change.ts
index a0d5a832..99acc24f 100644
--- a/src/events/sl-change.ts
+++ b/src/events/sl-change.ts
@@ -1,4 +1,4 @@
-type SlChangeEvent = CustomEvent<null>;
+type SlChangeEvent = CustomEvent<Record<string, never>>;
 
 declare global {
   interface GlobalEventHandlersEventMap {
diff --git a/src/events/sl-clear.ts b/src/events/sl-clear.ts
index b83a74ce..8955eecb 100644
--- a/src/events/sl-clear.ts
+++ b/src/events/sl-clear.ts
@@ -1,4 +1,4 @@
-type SlClearEvent = CustomEvent<null>;
+type SlClearEvent = CustomEvent<Record<string, never>>;
 
 declare global {
   interface GlobalEventHandlersEventMap {
diff --git a/src/events/sl-close.ts b/src/events/sl-close.ts
index 3d9e7561..c822eb0f 100644
--- a/src/events/sl-close.ts
+++ b/src/events/sl-close.ts
@@ -1,4 +1,4 @@
-type SlCloseEvent = CustomEvent<null>;
+type SlCloseEvent = CustomEvent<Record<string, never>>;
 
 declare global {
   interface GlobalEventHandlersEventMap {
diff --git a/src/events/sl-collapse.ts b/src/events/sl-collapse.ts
index f737bb55..252a743a 100644
--- a/src/events/sl-collapse.ts
+++ b/src/events/sl-collapse.ts
@@ -1,4 +1,4 @@
-type SlCollapseEvent = CustomEvent<null>;
+type SlCollapseEvent = CustomEvent<Record<string, never>>;
 
 declare global {
   interface GlobalEventHandlersEventMap {
diff --git a/src/events/sl-error.ts b/src/events/sl-error.ts
index 346a7283..c227504e 100644
--- a/src/events/sl-error.ts
+++ b/src/events/sl-error.ts
@@ -1,4 +1,4 @@
-type SlErrorEvent = CustomEvent<null | { status: number }>;
+type SlErrorEvent = CustomEvent<{ status?: number }>;
 
 declare global {
   interface GlobalEventHandlersEventMap {
diff --git a/src/events/sl-expand.ts b/src/events/sl-expand.ts
index 72107798..5e4ed09a 100644
--- a/src/events/sl-expand.ts
+++ b/src/events/sl-expand.ts
@@ -1,4 +1,4 @@
-type SlExpandEvent = CustomEvent<null>;
+type SlExpandEvent = CustomEvent<Record<string, never>>;
 
 declare global {
   interface GlobalEventHandlersEventMap {
diff --git a/src/events/sl-finish.ts b/src/events/sl-finish.ts
index d2ff116b..6d95dfe9 100644
--- a/src/events/sl-finish.ts
+++ b/src/events/sl-finish.ts
@@ -1,4 +1,4 @@
-type SlFinishEvent = CustomEvent<null>;
+type SlFinishEvent = CustomEvent<Record<string, never>>;
 
 declare global {
   interface GlobalEventHandlersEventMap {
diff --git a/src/events/sl-focus.ts b/src/events/sl-focus.ts
index 2496bd46..eac7f7f0 100644
--- a/src/events/sl-focus.ts
+++ b/src/events/sl-focus.ts
@@ -1,4 +1,4 @@
-type SlFocusEvent = CustomEvent<null>;
+type SlFocusEvent = CustomEvent<Record<string, never>>;
 
 declare global {
   interface GlobalEventHandlersEventMap {
diff --git a/src/events/sl-hide.ts b/src/events/sl-hide.ts
index 177fd1da..7a75d37b 100644
--- a/src/events/sl-hide.ts
+++ b/src/events/sl-hide.ts
@@ -1,4 +1,4 @@
-type SlHideEvent = CustomEvent<null>;
+type SlHideEvent = CustomEvent<Record<string, never>>;
 
 declare global {
   interface GlobalEventHandlersEventMap {
diff --git a/src/events/sl-initial-focus.ts b/src/events/sl-initial-focus.ts
index bf35e80b..f2d7d6af 100644
--- a/src/events/sl-initial-focus.ts
+++ b/src/events/sl-initial-focus.ts
@@ -1,4 +1,4 @@
-type SlInitialFocusEvent = CustomEvent<null>;
+type SlInitialFocusEvent = CustomEvent<Record<string, never>>;
 
 declare global {
   interface GlobalEventHandlersEventMap {
diff --git a/src/events/sl-input.ts b/src/events/sl-input.ts
index c390bd48..030dce26 100644
--- a/src/events/sl-input.ts
+++ b/src/events/sl-input.ts
@@ -1,4 +1,4 @@
-type SlInputEvent = CustomEvent<null>;
+type SlInputEvent = CustomEvent<Record<string, never>>;
 
 declare global {
   interface GlobalEventHandlersEventMap {
diff --git a/src/events/sl-lazy-change.ts b/src/events/sl-lazy-change.ts
index 84d33dfd..2d6e4f2a 100644
--- a/src/events/sl-lazy-change.ts
+++ b/src/events/sl-lazy-change.ts
@@ -1,4 +1,4 @@
-type SlLazyChangeEvent = CustomEvent<null>;
+type SlLazyChangeEvent = CustomEvent<Record<string, never>>;
 
 declare global {
   interface GlobalEventHandlersEventMap {
diff --git a/src/events/sl-lazy-load.ts b/src/events/sl-lazy-load.ts
index 20f58ad1..9476dfc1 100644
--- a/src/events/sl-lazy-load.ts
+++ b/src/events/sl-lazy-load.ts
@@ -1,4 +1,4 @@
-type SlLazyLoadEvent = CustomEvent<null>;
+type SlLazyLoadEvent = CustomEvent<Record<string, never>>;
 
 declare global {
   interface GlobalEventHandlersEventMap {
diff --git a/src/events/sl-load.ts b/src/events/sl-load.ts
index cc72d8fb..ae3e468c 100644
--- a/src/events/sl-load.ts
+++ b/src/events/sl-load.ts
@@ -1,4 +1,4 @@
-type SlLoadEvent = CustomEvent<null>;
+type SlLoadEvent = CustomEvent<Record<string, never>>;
 
 declare global {
   interface GlobalEventHandlersEventMap {
diff --git a/src/events/sl-remove.ts b/src/events/sl-remove.ts
index 46e32c79..1b8a86e3 100644
--- a/src/events/sl-remove.ts
+++ b/src/events/sl-remove.ts
@@ -1,4 +1,4 @@
-type SlRemoveEvent = CustomEvent<null>;
+type SlRemoveEvent = CustomEvent<Record<string, never>>;
 
 declare global {
   interface GlobalEventHandlersEventMap {
diff --git a/src/events/sl-reposition.ts b/src/events/sl-reposition.ts
index e87917b6..b4c5b186 100644
--- a/src/events/sl-reposition.ts
+++ b/src/events/sl-reposition.ts
@@ -1,4 +1,4 @@
-type SlRepositionEvent = CustomEvent<null>;
+type SlRepositionEvent = CustomEvent<Record<string, never>>;
 
 declare global {
   interface GlobalEventHandlersEventMap {
diff --git a/src/events/sl-show.ts b/src/events/sl-show.ts
index e2e5544d..870467a4 100644
--- a/src/events/sl-show.ts
+++ b/src/events/sl-show.ts
@@ -1,4 +1,4 @@
-type SlShowEvent = CustomEvent<null>;
+type SlShowEvent = CustomEvent<Record<string, never>>;
 
 declare global {
   interface GlobalEventHandlersEventMap {
diff --git a/src/events/sl-start.ts b/src/events/sl-start.ts
index 61f4c733..f021f8fe 100644
--- a/src/events/sl-start.ts
+++ b/src/events/sl-start.ts
@@ -1,4 +1,4 @@
-type SlStartEvent = CustomEvent<null>;
+type SlStartEvent = CustomEvent<Record<string, never>>;
 
 declare global {
   interface GlobalEventHandlersEventMap {