diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 8eb6d297e..b97ef2889 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -20,7 +20,7 @@ repos:
       - id: black
 
   - repo: https://github.com/PyCQA/isort
-    rev: 5.11.4
+    rev: 5.12.0
     hooks:
       - id: isort
         args:
diff --git a/DIRECTORY.md b/DIRECTORY.md
index 31e86ea59..a8786cc25 100644
--- a/DIRECTORY.md
+++ b/DIRECTORY.md
@@ -543,8 +543,7 @@
   * [Euler Modified](maths/euler_modified.py)
   * [Eulers Totient](maths/eulers_totient.py)
   * [Extended Euclidean Algorithm](maths/extended_euclidean_algorithm.py)
-  * [Factorial Iterative](maths/factorial_iterative.py)
-  * [Factorial Recursive](maths/factorial_recursive.py)
+  * [Factorial](maths/factorial.py)
   * [Factors](maths/factors.py)
   * [Fermat Little Theorem](maths/fermat_little_theorem.py)
   * [Fibonacci](maths/fibonacci.py)