diff --git a/DIRECTORY.md b/DIRECTORY.md
index 883b81b2444d..c46d81ab75bc 100644
--- a/DIRECTORY.md
+++ b/DIRECTORY.md
@@ -854,6 +854,8 @@
     * [Sol1](https://github.com/TheAlgorithms/Python/blob/master/project_euler/problem_135/sol1.py)
   * Problem 144
     * [Sol1](https://github.com/TheAlgorithms/Python/blob/master/project_euler/problem_144/sol1.py)
+  * Problem 145
+    * [Sol1](https://github.com/TheAlgorithms/Python/blob/master/project_euler/problem_145/sol1.py)
   * Problem 173
     * [Sol1](https://github.com/TheAlgorithms/Python/blob/master/project_euler/problem_173/sol1.py)
   * Problem 174
diff --git a/mypy.ini b/mypy.ini
index 94fb125fb124..6d89b5d116b3 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -2,4 +2,4 @@
 ignore_missing_imports = True
 install_types = True
 non_interactive = True
-exclude = (matrix_operation.py|other/least_recently_used.py|other/lfu_cache.py|other/lru_cache.py)
+exclude = (matrix/matrix_operation.py|other/least_recently_used.py|other/lfu_cache.py|other/lru_cache.py)