Tweaks

AllenDowney · AllenDowney · commit 76b4c922d0a3 · 2022-12-29T14:58:36.000-05:00
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
@@ -16,7 +16,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: [3.9]
+        python-version: [3.8]
 
     steps:
       - uses: actions/checkout@v2
diff --git a/requirements.txt b/requirements.txt
@@ -1,5 +1,6 @@
+# these versions match Colab as of 2022-12-29
 jupyter
-numpy==1.21
+numpy==1.22
 matplotlib
 plotly
 seaborn
