diff --git a/Makefile b/Makefile
index 3f265e5..ec9dcbd 100644
--- a/Makefile
+++ b/Makefile
@@ -16,8 +16,8 @@ bins+=31-switch-many
 bins+=32-switch-many-join
 bins+=33-switch-many-cascade
 bins+=51-fibonacci
-bins+=61-mutex
-bins+=62-mutex
+#bins+=61-mutex
+#bins+=62-mutex
 bins+=71-preemption
 bins+=81-deadlock