diff --git a/README.md b/README.md
index a942eb5..0409902 100644
--- a/README.md
+++ b/README.md
@@ -61,7 +61,7 @@ func main() {
 	}
 
 	// wait for cache to expire
-	time.Sleep(time.Millisecond * 12)
+	time.Sleep(time.Millisecond * 150)
 
 	// get value under key1 after key expiration
 	r, ok = cache.Get("key1")
diff --git a/expirable/expirable_lru_test.go b/expirable/expirable_lru_test.go
index fd3b255..635faaa 100644
--- a/expirable/expirable_lru_test.go
+++ b/expirable/expirable_lru_test.go
@@ -504,7 +504,7 @@ func ExampleLRU() {
 	}
 
 	// wait for cache to expire
-	time.Sleep(time.Millisecond * 100)
+	time.Sleep(time.Millisecond * 150)
 
 	// get value under key1 after key expiration
 	r, ok = cache.Get("key1")