diff --git a/README.md b/README.md
index 9e6f746d1..823471889 100644
--- a/README.md
+++ b/README.md
@@ -55,7 +55,7 @@ and even change the example programs. You’ll see that the code cells
 have no output at first, until you execute them by pressing
 {kbd}`Shift`\+{kbd}`Enter`. Complete details on how to interact with
 a live Jupyter notebook are described in [Getting Started with
-Jupyter](https://foundations.projectpythia.org/foundations/getting-started-jupyter.html).
+Jupyter](https://foundations.projectpythia.org/foundations/getting-started-jupyter).
 
 Note, not all Cookbook chapters are executable. If you do not see
 the rocket ship icon, such as on this page, you are not viewing an
diff --git a/notebooks/notebook-template.ipynb b/notebooks/notebook-template.ipynb
index 5274e6978..25c3a430f 100644
--- a/notebooks/notebook-template.ipynb
+++ b/notebooks/notebook-template.ipynb
@@ -62,8 +62,8 @@
     "\n",
     "| Concepts | Importance | Notes |\n",
     "| --- | --- | --- |\n",
-    "| [Intro to Cartopy](https://foundations.projectpythia.org/core/cartopy/cartopy.html) | Necessary | |\n",
-    "| [Understanding of NetCDF](https://foundations.projectpythia.org/core/data-formats/netcdf-cf.html) | Helpful | Familiarity with metadata structure |\n",
+    "| [Intro to Cartopy](https://foundations.projectpythia.org/core/cartopy/cartopy) | Necessary | |\n",
+    "| [Understanding of NetCDF](https://foundations.projectpythia.org/core/data-formats/netcdf-cf) | Helpful | Familiarity with metadata structure |\n",
     "| Project management | Helpful | |\n",
     "\n",
     "- **Time to learn**: estimate in minutes. For a rough idea, use 5 mins per subsection, 10 if longer; add these up for a total. Safer to round up and overestimate.\n",