diff --git a/src/test-utils.ts b/src/test-utils.ts
index 3acf9a20..c6caae44 100644
--- a/src/test-utils.ts
+++ b/src/test-utils.ts
@@ -93,6 +93,10 @@ export function resetIntersectionMocking() {
   observers.clear();
 }
 
+function getIsReactActEnvironment() {
+  return Boolean(global.IS_REACT_ACT_ENVIRONMENT);
+}
+
 function triggerIntersection(
   elements: Element[],
   trigger: boolean | number,
@@ -148,7 +152,8 @@ function triggerIntersection(
   }
 
   // Trigger the IntersectionObserver callback with all the entries
-  if (act) act(() => item.callback(entries, observer));
+  if (act && getIsReactActEnvironment())
+    act(() => item.callback(entries, observer));
   else item.callback(entries, observer);
 }
 /**