diff --git a/Dockerfile b/Dockerfile
index 3983eb3..05e23cb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -28,4 +28,4 @@ CMD ["/usr/sbin/apache2ctl", "-D", "FOREGROUND"]
 
 STOPSIGNAL SIGWINCH
 
-HEALTHCHECK CMD netstat -tnlp | grep '0.0.0.0:80' || exit 1
+HEALTHCHECK CMD netstat -tnlp | grep ':::80' || exit 1