diff --git a/.gitignore b/.gitignore
index efef32d..50ee7b3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,3 +12,6 @@ __pycache__/
 # docker
 .docker_cid
 Dockerfile
+
+# Pycharm / Jetbrains IDEs
+.idea/
diff --git a/assignments/01_assignment.ipynb b/assignments/01_assignment.ipynb
index 5e4def8..4c84137 100644
--- a/assignments/01_assignment.ipynb
+++ b/assignments/01_assignment.ipynb
@@ -19,8 +19,8 @@
     "## Introduction to Python / Numpy\n",
     "\n",
     "* [Learn Python in 15 minutes](https://learnxinyminutes.com/docs/python3/): We will use Python 3.\n",
-    "* [Numpy for Matlab Users](https://docs.scipy.org/doc/numpy-dev/user/numpy-for-matlab-users.html#general-purpose-equivalents)\n",
-    "* [Numpy Quickstart](https://docs.scipy.org/doc/numpy-dev/user/quickstart.html)\n",
+    "* [Numpy for Matlab Users](https://docs.scipy.org/doc/numpy/user/numpy-for-matlab-users.html#general-purpose-equivalents)\n",
+    "* [Numpy Quickstart](https://docs.scipy.org/doc/numpy/user/quickstart.html)\n",
     "\n",
     "## Libraries\n",
     "\n",