diff --git a/.gitignore b/.gitignore
index d73cb8de4f3d0c9f3b15278b1874922df218895c..c8c09b0b41fb0d69c2e1ea0549e5bec7353933f7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -28,8 +28,9 @@ solutions/ex13
 #irlc/ex11
 #irlc/ex12
 #irlc/ex13
-irlc/tests/tests_week01.py
-irlc/tests/tests_week02.py
+
+# irlc/tests/tests_week01.py
+#irlc/tests/tests_week02.py
 irlc/tests/tests_week03.py
 irlc/tests/tests_week04.py
 irlc/tests/tests_week05.py
@@ -62,10 +63,10 @@ irlc/exam/exam2025*/*.pdf
 
 irlc/exam/exam2*/solution
 
-irlc/exam/midterm2023a
-irlc/exam/midterm2023b
+# irlc/exam/midterm2023a
+# irlc/exam/midterm2023b
 
-irlc/lectures/lec01
+# irlc/lectures/lec01
 irlc/lectures/lec02
 irlc/lectures/lec03
 irlc/lectures/lec04
diff --git a/environment.yml b/environment.yml
index dcb17c4aaf1906927a5d9d5033331f0ad3cd6a29..30949755d166acd100ba6ce55647b010c085450c 100644
--- a/environment.yml
+++ b/environment.yml
@@ -19,6 +19,7 @@ dependencies:
   - requests
   - qtpy # Try pyqt, pyqt6 on other platforms.
   - pygame
+  - numpy>=2.0.1
   - pip
   - pip:
       - -r requirements_pip.txt