diff --git a/README.md b/README.md
index cef736c..d461017 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,7 @@
    *pop*, which removes the most recently added element
  * **Last in, first out data structure (LIFO)**: the most recently added object is the first to be removed
  * Time Complexity:
-   * Access: `O(n)`
+   * Access: `O(1)`
    * Search: `O(n)`
    * Insert: `O(1)`
    * Remove: `O(1)`
@@ -30,7 +30,7 @@
    into the queue, and *dequeue*, which removes an element from the queue
  * **First in, first out data structure (FIFO)**: the oldest added object is the first to be removed
  * Time Complexity:
-   * Access: `O(n)`
+   * Access: `O(1)`
    * Search: `O(n)`
    * Insert: `O(1)`
    * Remove: `O(1)`