diff --git a/stacks_queues/stack_min/stack_min_challenge.ipynb b/stacks_queues/stack_min/stack_min_challenge.ipynb
index 7bd781c..48c6065 100644
--- a/stacks_queues/stack_min/stack_min_challenge.ipynb
+++ b/stacks_queues/stack_min/stack_min_challenge.ipynb
@@ -53,7 +53,9 @@
     "## Test Cases\n",
     "\n",
     "* Push/pop on empty stack\n",
-    "* Push/pop on non-empty stack"
+    "* Push/pop on non-empty stack\n",
+    "* Min on empty stack\n",
+    "* Min on non-tempty stack"
    ]
   },
   {
diff --git a/stacks_queues/stack_min/stack_min_solution.ipynb b/stacks_queues/stack_min/stack_min_solution.ipynb
index 2771510..d50a358 100644
--- a/stacks_queues/stack_min/stack_min_solution.ipynb
+++ b/stacks_queues/stack_min/stack_min_solution.ipynb
@@ -52,7 +52,9 @@
     "## Test Cases\n",
     "\n",
     "* Push/pop on empty stack\n",
-    "* Push/pop on non-empty stack"
+    "* Push/pop on non-empty stack\n",
+    "* Min on empty stack\n",
+    "* Min on non-tempty stack"
    ]
   },
   {