diff --git a/u05-3/Semaphore.java b/u05-3/Semaphore.java
index da19715..237e4df 100644
--- a/u05-3/Semaphore.java
+++ b/u05-3/Semaphore.java
@@ -14,6 +14,6 @@ class Semaphore {
 
 	synchronized public void release() {
 		this.value--;
-		notifyAll();
+		notify();
 	}
 }
\ No newline at end of file